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13BE6

Cannon Crewmember

E-6 (Staff Sergeant) · Army

E1–E3E-4E-5E-6E-7E8–E9
HEADS UP

Staff Sergeant is the rank where the howitzer is yours. Section Chief is the load-bearing E-6 seat in cannon FA — you sign for the gun (M777A2 / M109A6 / M109A7 PIM / M119A3), the fire control, the sights, the breech tools, the sensitive comm, and every cannoneer in the 7-9 soldier crew. ALC was the STEP gate for SSG; SLC at Fort Sill is the next institutional gate. The Master Fires Sergeant Course at Fort Sill is the FA branch's senior NCO differentiator credential — the conversation starts at SSG with the PSG and the BC, not at SFC. The 131A FA Targeting Technician warrant officer accession packet is also a real conversation at this rank — most fires senior NCOs say the SSG to SFC window is the right time to make the WO call.

The Honest MOS Read
Staff Sergeant 13B is the rank where the howitzer stops being something you serve on someone else's crew and starts being something you own. Section Chief is THE seat the FA enlisted force is built around — the SSG slot at the gun is the seat the FA branch's senior NCO chain reads as the credibility test for every promotion above it. You sign for the cannon system your unit fields (M777A2 in light / Stryker FA, M109A6 Paladin or M109A7 Paladin Integrated Management in ABCT, M119A3 in IBCT), every piece of fire control on it, the FAASV in ABCT, the prime mover (FMTV / HEMTT / Paladin tracked variant), the section's communications fill, and seven to nine cannoneers — gunner, assistant gunner, ammo team chief, cannoneers, and the prime mover driver. You build section training, conduct quarterly counselings, defend your section input to the battery Quarterly Training Brief (QTB), and translate the battery commander's intent into a section that puts the first round downrange inside the time standard from the FDC's call. The doctrinal architecture lives in TC 3-09.81 (Field Artillery Manual Cannon Gunnery — the cannoneer's bible, and the manual the section chief owns cover-to-cover), TC 3-09.8 (Field Artillery Gunnery), ATP 3-09.50 (The Field Artillery Cannon Battery), and FM 3-09 (Fire Support and Field Artillery Operations). The cannon Tables I-VI gunnery framework in TC 3-09.81 is yours to run — Table I (crew drill) through Table VI (section certification under live fire) is the certification pipeline you sign each cannoneer into the section through. You sign Table VI for the section as a whole. The BC and the battalion CSM read your section's Table VI rating; the FA branch senior NCO chain reads the SSG's signature. The promotion-to-SFC math at this rank runs through the centralized HRC SFC board under AR 600-8-19. The semi-centralized E-5/E-6 point system ends at SSG; E-7 and above is fully centralized board paper. The board reads your full ERB / SRB packet: every NCOER, every school (BLC, ALC, SLC when complete), every award, every PME, every flag, every Article 15, every counseling statement. The 13B SFC board cycles roughly annually; the selection rate moves with FA inventory math against requirement — pull the current HRC published board results before guessing what the bar looks like. There is no cutoff score to study to. The board reads paper. Your paper either earns it or doesn't. The Senior Leader Course is the STEP gate. 13B SLC is at Fort Sill, Oklahoma — the Field Artillery Center of Excellence and the home of the FA branch schoolhouse, the FA branch senior NCO chain, the Master Fires Sergeant Course, and the 131A FA Targeting Technician WOBC. SLC at Fort Sill is MOS-specific — the curriculum covers senior-FA-NCO planning at the section, platoon, and battery level; AFATDS database administration at the section-chief level; senior-NCO leadership under AR 600-20 and ATP 6-22 series; and the integration with the maneuver fight at the BCT level. Slot requests run through the FA battalion S-3 / brigade S-3 channels and compress as the year-group approaches the E-7 zone. Packet (DA 4187 + ATRRS) goes in well before you become board-eligible. The 13B SSG career-broadening fork is real. The Master Fires Sergeant Course at Fort Sill is THE differentiator credential for senior FA NCOs — the FA branch's senior-NCO professional course, run by the FA Center of Excellence, that produces the master-fires-sergeant-qualified NCOs who run the FA battalion's gunnery program and feed the senior 1SG / FA BN CSM slate. The course is slot-allocated through the FA battalion S-3 NCOIC and the brigade FA CSM; the conversation starts at SSG with the PSG and the BC, not at SFC when the door has already narrowed. Drill Sergeant assignment (24 months at OSUT — 13B OSUT runs at Fort Sill under the 434th Field Artillery Brigade, so cannon-crew DS tours can be inside the schoolhouse you came through, the X4 Drill Sergeant ASI on the record brief). TRADOC instructor billets at the 434th FA Brigade (the Fort Sill schoolhouse). Master Gunner equivalent platform credentials by system (verify the current FA Center of Excellence schedule for the gunner-track institutional courses). NTC / JRTC / JMRC Observer / Controller / Trainer (OC/T) at MSG or SFC level later, but the SSG who scopes the OC/T conversation early is the SSG who pins MSG with the OC/T tour on the record brief. The 131A FA Targeting Technician warrant officer accession packet is the parallel question. The 131A is the field-artillery-fires warrant officer specialty — accessed via WO Strength Branch packet submission, WO Officer Candidate School at Fort Novosel, AL (formerly Fort Rucker — renamed in 2023; the U.S. Army Aviation Center of Excellence is the WOCS host), and the 131A Warrant Officer Basic Course (WOBC) at Fort Sill. The career model is different — WO is technical-specialist track with longer service obligation, different promotion math (CW2 through CW5), different post-service profile. Most FA branch senior NCOs say the SSG to SFC window is the right time to make the WO call, because the WOCS plus WOBC pipeline consumes 9-12 months and the older the SSG/SFC is, the harder the family-separation math becomes. Most 13B section chiefs stay on the gun track and pin SFC firing-platoon-sergeant; deviations into 131A WO exist and are real. The post-service market at E-6 in the 13B lane is genuinely strong if the credential stack is on the record brief: BLC + ALC + section chief tour + section ARTEP rating in the upper half of the FA battalion + clean NCOER profile + Sapper Tab equivalent (Air Assault / Airborne / Pathfinder where the brigade slate supports) + clearance maps to FA-systems contractor billets at BAE (M109 PIM cadre), Lockheed Martin (Excalibur cadre), Raytheon (Excalibur and precision-guided munitions cadre), Hanwha Defense USA (K9 cadre for the FMS / interoperability work), and the smaller FA-specific contractors. The defense-contractor and federal-civil-service paths get materially stronger at SFC and beyond; the SSG who builds the credential stack across 36 months is the SSG whose retirement-prep math works out.
Career Arc
  • 01E-6 pin-on via the semi-centralized SSG board under AR 600-8-19 — ALC required, BLC required, point sheet stacked, PSG and 1SG release.
  • 02Section Chief assumption — howitzer signed for, fire control signed for, 7-9 soldier crew signed for, FAASV (in ABCT) signed for, prime mover signed for.
  • 03SLC slot request via FA battalion S-3 / ATRRS — 13B SLC at Fort Sill, the STEP gate for SFC.
  • 04Master Fires Sergeant Course conversation with the PSG and the BC — the FA branch differentiator credential; slot through FA battalion S-3 NCOIC.
  • 05Drill Sergeant / Recruiter / TRADOC instructor window — visible board-differentiator, 24-36 month TDA tour.
  • 06131A FA Targeting Technician warrant officer accession decision — packet submitted via WO Strength Branch if track diverges (SSG to SFC window).
  • 07First centralized HRC promotion board (E-7) — paper-record-only review. E-7 pin-on if selected; if non-selected, the read on competitiveness becomes the conversation.
Common Screwups
  • ×DUI / Article 15 / fraternization at this rank — career-ending in the FA community. The 13B senior NCO chain is structurally small; the BC, the FA battalion CSM, the brigade FA CSM, and the FA branch senior NCO chain at Fort Sill all hear within 72 hours, and the next E-7 board reads it on paper.
  • ×Pinning the Sergeant skills onto the Staff Sergeant role. The team-leader / assistant-section-chief instincts that got you E-5 don't scale; the section needs you planning, resourcing, and signing at section level, not running the gun in person while your gunner stands and watches.
  • ×Missing the SLC slot. Without SLC, no SFC pin-on regardless of how good the rest of the record is. Slots compress when the brigade is moving multiple SSGs through the promotion zone — push the packet early.
  • ×Coasting through the Master Fires Sergeant Course conversation. The course is the FA branch's senior NCO differentiator credential; soldiers who phone the conversation at SSG find the door narrower at SFC. The slot is the credential and the network simultaneously.
  • ×Treating the 131A FA Targeting Technician warrant officer packet conversation as a vague 'someday' question instead of a SSG-rank decision. The WO accession pipeline (WOCS at Fort Novosel + 131A WOBC at Fort Sill) is 9-12 months; SSGs who never made the decision until SFC find the door narrower and the case harder.

A Day in the Life

  • 0500Wake. PT uniform on. Phone check — overnight section events. Cannoneer in trouble? Section equipment issue (Paladin tracked variant maintenance, M777 prime mover deadline, M119A3 fire control fault)? FAASV ammunition discrepancy? The SSG who lets the phone go to voicemail at this rank is the SSG who hears about it from the PSG the wrong way.
  • 0530PT formation with the firing battery or the FA battalion. You report section accountability to the PSG; the BC walks the formation occasionally and reads the firing battery by reading the section chiefs.
  • 0545-0700Unit PT. You run the section's training with the battery plan. FA PT looks different from line maneuver PT — cannoneers lift heavy ammo for a living, so strength density is higher than infantry PT, ruck density is lower than rifle company. You walk the formation, check on cannoneers from the last counseling, adjust the SGTs as the day evolves. The SSG who does PT with the section is the SSG the cannoneers respect.
  • 0700-0900Hygiene, breakfast, change uniforms. You spend 20-30 minutes with the PSG — the day's priorities, the battery BUB items, the FA battalion CSM's items, the section's training calendar.
  • 0900First formation. The BC or the PSG addresses the firing battery; you stand with the section chiefs. The SGTs translate the section's tasks to the cannoneers and the prime mover driver. You verify execution during the morning walk-around.
  • 0915-1130Battery-level work. You are at the battery training meeting with the BC and the FDO, at the FA battalion S-3 fires synch event, or at the FA battalion CSM's NCO sync. You walk the gun line — howitzer PMCS, prime mover PMCS, FAASV PMCS in ABCT, fire control verification (digital fire control on Paladin, panoramic sight and collimator on M777 / M119), comm fill verification, ammunition accountability at the section ammo holding area. The section chief who walks the line every morning is the section chief whose gun does not surprise the BC at the next live-fire.
  • 1130-1300Chow. You eat with the firing battery senior NCO chain — the PSG, the other section chiefs, the FDC chief, the FAASV section sergeant in ABCT, the FA battalion S-3 NCOIC if he's at the battery. Conversation is FA battalion-level: training, slates, SLC packet timing, Master Fires Sergeant Course conversation, 131A WO accession, FA battery allocation, FA battalion CSM read.
  • 1300-1500Afternoon work. NCOER drafting (you write two-to-three NCOERs per cycle on the SGTs and SPCs in the section, and review the section's NCOER profile). Counseling under ATP 6-22.1 on the SGTs you are building toward the next E-6 board. Section Table VI prep — gun drill rehearsal, fire-mission simulation, FDC integration drill. SLC packet build if you are 18-24 months out from the E-7 board. 131A WO packet review if that track is on the table.
  • 1500-1630Final formation. The BC or the PSG briefs; you brief section-level adjustments; your gunner and assistant section chief brief the cannoneers. Sensitive items count — sights, collimators, breech tools, comm fill devices, AFATDS components on Paladin sections. End-of-day accountability rolled up to the section chief. The PSG and you walk the section on critical end items.
  • 1630-1800Section release. You stay 60-90 minutes with the PSG — AAR on the day, prep for tomorrow, FA battalion CSM coordination if needed. The SSG who closes out the day with the PSG is the SSG whose section does not surprise the BC at the next BUB.
  • 1800-2000Personal time. Married SSGs: family. Single SSGs: gym, SLC packet build if approaching E-7 zone, study for the Master Fires Sergeant Course conversation if pursuing, college coursework if running the GI Bill / TA stack toward a bachelor's. The FA-NCO post-service market values a clean credential stack; the SSG who builds it across 36 months is the SSG whose retirement-prep math works out.
  • 2000-2200After-hours coordination with the PSG, the SGTs, or a cannoneer in crisis. The SSG's phone is always on. Family-emergency calls, after-duty section soldier issues, CTC train-up prep work. The SSG who lets the phone go to voicemail stops being the SSG the PSG trusts.
  • 2200Lights out.
  • Field rotation / CTC / Battery Live-FireThe clock collapses. You are the senior section NCO for the howitzer during a JRTC, NTC, JMRC rotation, or a battery-level live-fire exercise at home station. The OC/T evaluator at the CTC fires team is writing the section's AAR; the BC reads it; the FA battalion CSM reads it; the next senior-NCO slate read reflects it.

Weekly Cadence

The Mon-Fri rhythm at SSG 13B level is the section-chief version of the firing battery rhythm. Monday is the heaviest planning day — you are reading the PSG's Friday release, adjusting the section's plan to match the firing battery's tasking, briefing the BC or the PSG by mid-morning, and validating the section equipment state (howitzer PMCS, prime mover PMCS, FAASV PMCS in ABCT, fire control verification, comm fill, ammunition accountability). Tuesday-Wednesday are training execution; you observe, the gunner runs gun-drill tasks, the SGTs run section-internal tasks, the cannoneers run primary gun-position tasks under SGT supervision. Thursday is howitzer / prime mover maintenance day (PMCS deep clean, deadline pursuit through the FA battalion BMO, fire control calibration, sights and collimator inspection) or section-level event prep; Friday is the firing battery event and release. The week's second rhythm is the battery and FA battalion work: the PSG sync (weekly), the battery training meeting with the BC and the FDO (weekly), the FA battalion CSM's NCO sync (monthly), the FA battalion S-3 fires synch event (weekly during operational tempo), the FA battalion BUB (weekly). The SSG who is on the SFC bench is at the PSG's office at least weekly and at the FA battalion CSM's office monthly. The SSG who is not is missing the briefing he needs to compete. The week's third rhythm is the section work — Table VI prep cycles, gun-drill rehearsal, fire-mission simulation drills with the FDC, SGT counseling under ATP 6-22.1, NCOER drafting and review for the SGT bench, ammunition accountability under AR 700-65, sensitive-item inventory cycles. The week's fourth rhythm is the institutional development work — SLC packet build if approaching the E-7 zone, Master Fires Sergeant Course conversation refinement, 131A WO packet review if that track is on the table, college coursework if running the GI Bill / TA stack, professional reading from the FA branch senior NCO reading list. The SSG who runs all four rhythms cleanly is the SSG the PSG and the BC name in the SFC slate; the SSG who runs only the first two is the SSG whose SFC bench read does not open at the next centralized board.

Key Skills — How to Drill Each

  1. 01
    Run a howitzer section through every collective fire-mission task on the battery METL — emplace, lay, fire, displace, hipshoot, react to counter-fire — at the ARTEP-MTP 'T' rating.
    TC 3-09.81 Tables I-VI is the certification framework. You drill the section through Tables I (crew drill) and II (gunnery skills) at home station, run Tables III-V (section gunnery, communications, and section-level fire-mission) as section-internal events, and sign Table VI (section certification under live fire) as the senior NCO of record. ARTEP-MTP (Army Training and Evaluation Program — Mission Training Plan) tasks are the unit's collective-task evaluation framework; the fire-mission collective tasks at the section level are evaluated by the battery FDO / FDC chief and the FA battalion S-3 fires shop. The SSG who runs the section to T-rating on the METL tasks at home station is the SSG whose section passes external evaluation at the next CTC rotation; the SSG who delegates Table VI to the gunner is the SSG who fails the AAR at the BC's office.
  2. 02
    Develop and defend a section input to the battery Quarterly Training Brief (QTB) — METL-aligned, resource-realistic, with a clean LOE the BC defends at battalion BUB.
    The QTB is the FA battalion's resource-allocation forum. Your PSG carries your section's input to the battery QTB, then to FA battalion. Your input is a one-page slide: METL tasks, training events scheduled, resource requirements (range time, ammunition forecast — projectiles, propellant, fuzes by type, prime mover fuel, FAASV-loaded ABCT or HEMTT-PLS in towed; range bid; manpower; safety officer / safety NCO requirements; MEDEVAC posture), and risks. Build it in PowerPoint; rehearse the back-brief with your PSG before he carries it forward. The section whose QTB input gets resourced is the section whose SSG wrote the most defensible slide. The slide that survives FA BN BUB without revision is the slide the BC names in the next senior-NCO sync.
  3. 03
    Conduct a section-level live-fire from concept to AAR — DA 7566 / DD 2977 risk management worksheet, MEDEVAC plan, surface danger zone, misfire procedure, post-fire weapons and ammo accountability.
    Section live-fire is the SSG's annual gate at the gun. Plan with the FA battalion S-3 and the range control office 60 days out. DD 2977 (Risk Assessment Worksheet) signed by every echelon up to the FA battalion commander per ATP 5-19; MEDEVAC posture — primary, secondary, ground evac — coordinated with the FA battalion medical platoon; SDZ overlay on the range map per TC 3-09.81 surface-danger-zone construction; PCC/PCI before the line; misfire procedure rehearsed (the hangfire wait, the unload, the reporting); post-fire weapons sweep, ammo accountability under AR 700-65 (Single Manager for Conventional Ammunition), brass-and-link policing for environmental compliance, full sensitive-item count on sights / collimators / breech tools / comm fill. AAR with the PSG before the BC hears about it.
  4. 04
    Manage section ammunition — projectile types, propellant charges, fuze settings — through every live mission cycle without a misfire or a hangfire mishandling.
    Ammunition handling at section-chief level is the senior NCO's signature responsibility. Projectile types (HE — high explosive, smoke, illum, legacy stocks of DPICM where still authorized, precision-guided munitions like Excalibur where fielded), propellant charges (M232 MACS for 155mm, the charge tables for 105mm M119), fuze types (PD — point-detonating, time, VT — variable-time, MOFA — multi-option fuze for artillery where supported), to the TC 3-09.81 fire control tables. The misfire / hangfire procedure is what separates the section chief from the gunner — the wait, the unload, the reporting, the BC notification, the FA battalion safety officer involvement, the 15-6 if the misfire results in damage. The SSG who runs ammunition cleanly across a 9-month operational cycle is the SSG whose section never appears in the FA battalion safety brief; the SSG who lets ammunition drift is the SSG whose section is the FA battalion's preferred negative example.
  5. 05
    Train and certify your gunner, assistant section chief, and ammo team chief to a standard the BC will recognize when you go on leave.
    Bench-build is the SSG's most consequential output. Your gunner is the next SSG section chief on the FA battalion slate; your assistant section chief is the gunner one cycle behind; your ammo team chief is the section's senior cannoneer and the next SGT board candidate. Each subordinate NCO gets quarterly counseling under ATP 6-22.1 with a development objective tied to the next promotion board — BLC packet refinement for the SPC, ALC packet refinement for the SGT, NCOER bullet quality, gunner qualification, section-chief track readiness. The SSG who graduates two SGTs to E-6-promotable in 30 months is the SSG the PSG and the BC name for the SFC bench. While doing this, you are building your own SLC packet and your own NCOER profile for the centralized SFC board.
  6. 06
    Write two-to-three NCOERs per cycle that the senior rater can defend at the FA BN NCOER review under AR 623-3.
    NCOER bullets at the section-chief level are graded on observable measurable outcomes — section first-round time, section Table VI rating, section sensitive-item accountability across a rotation, section ARTEP-MTP rating on the fire-mission collective tasks, the gunner's qualification status, the assistant gunner's BLC packet status. Bullets that read 'served as section sergeant for a 9-soldier howitzer section' are filler; bullets that read 'led section to T rating on Table VI live fire; first-round time 1:42 against the battery's 2:00 standard; zero sensitive-item discrepancies across NTC 24-XX rotation' are defensible at FA BN. The SSG who writes the bullet that names the outcome is the SSG whose rated SGTs pin SSG on schedule; the SSG who writes filler is the SSG whose NCOER profile gets pulled back at the next senior-rater review.

Manuals & References — What Chapters Matter

  • TC 3-09.81 — Field Artillery Manual Cannon Gunnery (own this manual cover-to-cover).
    The cannoneer's bible and the section chief's signature manual. Chapters on gun drill, fire control, manual gunnery (GFT, firing tables, MET application), Tables I-VI gunnery certification, misfire procedure, ammunition handling, and surface-danger-zone construction are the source material you sign Table VI against. Read it cover-to-cover before SLC; reference it monthly during section training; the FA branch senior NCO chain quotes from it in the next senior-NCO sync.
  • TC 3-09.8 — Field Artillery Gunnery; ATP 3-09.50 — The Field Artillery Cannon Battery.
    TC 3-09.8 is the broader FA gunnery doctrine — covers section, platoon, and battery gunnery integration with FDC and the fires picture. ATP 3-09.50 is the cannon battery doctrine — the battery TO&E, the FDC integration, the FAASV employment in ABCT, the M777 prime-mover-and-section employment in IBCT/SBCT, the M119A3 platoon employment in light. The SSG who reads ATP 3-09.50 at the working-knowledge level is the SSG who can brief the BC on the section's role inside the battery scheme without rewording.
  • FM 3-09 — Fire Support and Field Artillery Operations; ATP 3-09 — Fires.
    FM 3-09 is the doctrinal spine of the entire fires fight. Chapters on fires planning, fires execution, fires integration, and the targeting cycle are the source material the FDC officer (FDO), the battery commander, and the FA battalion S-3 quote from in the BUB. As section chief, you are not just executing FM 3-09 — you are translating it down to the cannoneers. Re-read the cannon-battery and section-execution chapters annually.
  • AR 350-1 — Army Training and Leader Development; ATP 5-19 — Risk Management; DD 2977 — Composite Risk Management Worksheet.
    AR 350-1 is the Army's training doctrine — the 8-step training model, METL alignment, training-event approval, range certification, T&EO (Training & Evaluation Outline) development. Your QTB input is judged against this reg. ATP 5-19 is the risk management methodology; DD 2977 is the artifact you sign for every section live-fire above routine risk. The signature chain runs from your SSG through the BC to the FA battalion commander depending on risk level.
  • AR 600-8-19 — Enlisted Promotions; AR 623-3 — Evaluation Reporting System; ATP 6-22.1 — The Counseling Process.
    AR 623-3 governs NCOER writing — at SSG you write two-to-three NCOERs per cycle on the SGTs and SPCs you rate; the senior rater profile is judged by whether your rated SGTs got selected at the SSG board. AR 600-8-19 covers the promotion-point worksheet you sign for your section's specialists and below. ATP 6-22.1 is the counseling-process reference; the DA 4856 chain you build is your defensible record.
  • TC 7-22.7 — The Army Noncommissioned Officer Guide; AR 600-20 — Army Command Policy.
    TC 7-22.7 is the TC the PSG quotes — Section on the NCO Support Channel, on counseling, on standards. AR 600-20 is the command-policy spine — SHARP (chapter 7), EO (chapter 4), anti-extremism (chapter 5), military justice (chapter 6). At SSG your name is on the initial company-level reports for events in the section.

Standards — How to Hit Each

  • ALC graduate; SLC packet built for the E-7 board competitiveness window.
    ALC was the SSG STEP gate — completed before E-6 pin-on for most 13B senior NCOs. SLC at Fort Sill is the SFC STEP gate; the slot request runs through the FA battalion S-3 to FA branch HRC, and slot availability tightens as the year-group approaches the E-7 zone. Submit the SLC packet 18-24 months before E-7 board eligibility — the FA branch senior NCO chain reads the SLC graduation date on the SFC board packet as the institutional-credential timing signal. Soldiers who attend SLC with FA branch instructor recognition (named in the AAR, named in the FA branch senior NCO chain's read) are differentiated at the SFC slate.
  • Section certified at ARTEP-MTP 'T' on the battery METL fire-mission tasks; first-round time inside the unit standard from the FDC's call; section live-fire / CTC rotation rating in the upper half of the FA battalion.
    The section's collective-task rating is the SSG's most visible operational metric. T (Trained) on the fire-mission collective tasks at the section level is the FA battalion's bench-tier signal. First-round time inside the battery standard (varies by platform — M777 typically faster than Paladin section emplacement, M119 the fastest light system) from the FDC's call is the operator-level signal the BC names in the BUB. CTC rotation rating (JRTC, NTC, JMRC) in the upper half of the FA battalion is the external-evaluator signal — the OC/T fires AAR reads the section's name.
  • ACFT 540+ as a working floor for the 13B section chief; ACFT 580+ positions you for the SFC bench at the FA battalion CSM read.
    ACFT is the Army's combat fitness standard under the current scoring guidance from TRADOC and the Center for Initial Military Training, with the holistic-health-and-fitness framework in ATP 7-22.01. 13B section chiefs lift heavy ammo, load propellant, displace under load, and live with the recoil cycle of the gun — the line measures fitness alongside the rest of the FA battalion. ACFT 540+ is the working floor at this rank; ACFT 580+ positions you for the visible-leadership comparison the FA battalion CSM reads at the SFC slate. Drift below the working floor is what the senior rater pulls the NCOER bullet on.
  • Section sensitive-item accountability and ammunition accountability — zero unresolved discrepancies across your tenure.
    The section's sensitive items (sights, collimators, breech tools, comm fill devices, optics, AFATDS components on Paladin sections) and Class V (ammunition, fuzes, propellant) accountability is the section chief's signature responsibility. The cyclic inventories (monthly, quarterly, semi-annual change-of-command-equivalent for section turnover) are signed by the section chief; AR 700-65 (Single Manager for Conventional Ammunition) governs the Class V piece. Zero unresolved discrepancies across a 24-month tour is the bench-tier signal at the SFC slate; one unresolved sensitive-item discrepancy eats the section's training schedule for a week and the SSG's NCOER for a year.
  • Personal NCOER profile defensible at FA battalion — Top Block / Most Qualified rate matching the actual delta in subordinate soldier selections.
    The senior rater at this rank is the BC or the FA battalion CSM depending on the rating-scheme. The NCOER profile is judged by whether the SGTs and SPCs you rated as Top Block / Most Qualified actually got selected at their respective boards. If your subordinate SGTs are not pinning E-6 at the rates your NCOER profile implied, the senior rater profile gets pulled back at the next FA battalion NCOER review. Honest writing — to the reg, not to inflation — keeps the profile defensible.

Technical Mistakes — Concrete Consequences

  • Signing a fire-mission 'ready' without verifying the lay yourself when the gunner is new.
    The round goes where it should not — long, short, or off the SDZ. The battery is in the BC's office that afternoon; the FA battalion safety officer is in the section the next day; the 15-6 investigation has your name on the cover sheet. The fix is structural: every new gunner gets the SSG's verification on the lay for the first 90 days, every danger-close mission gets the SSG's verification regardless of crew tenure, and the section's verification SOP is in writing.
  • Skipping risk management (DD 2977) on a section live-fire because 'we did this last quarter.'
    When a soldier gets hurt and DA 2977 is blank, the BC cannot stand by you. The investigation finds the missing signature chain, the FA battalion CSM and the FA battalion commander eat the AAR at brigade, and the SSG signs out of the section before the next training cycle. The fix is structural: every live-fire above routine risk gets DD 2977, every DD 2977 gets the signature chain, every signature chain gets the safety officer review. ATP 5-19 is the methodology; the worksheet is the artifact you defend.
  • Letting weapons / sensitive items / ammunition accountability slide on a section displacement.
    One missing serial number on a sight, a collimator, a breech tool, or an AFATDS component eats the FA battalion schedule for a week and the SSG's NCOER for a year. The cyclic inventory cycles don't forgive shortcuts; the FA battalion supply officer and the BC walk the section's accountability paperwork after every move. The fix is the load plan that names every serialized item by line item, the post-displacement count signed by the section chief, and the no-shortcut SOP for sensitive-item movement.
  • Writing the NCOER as a wish-list instead of an evaluation.
    Senior raters read every NCOER and remember the SSG who inflated. The pulled-back rate at the next FA battalion NCOER review hits your profile — your future Top Block ratings are read with discount; your rated SGTs who deserved Top Block don't get the read they earned because your profile lost credibility. The fix is honest writing to the reg under AR 623-3 — observable measurable outcomes, named in the bullet, defensible at FA battalion.
  • Hiding section problems from the PSG to look good.
    He will find out — usually from the BC, in the worst way. The SSG who hides a maintenance gap, a soldier-in-crisis issue, an accountability discrepancy, or a training shortfall is the SSG who loses the PSG's defense at the next SFC slate read. The FA branch senior NCO chain reads honest surfacing of problems as senior-NCO competence; the chain reads hiding as senior-NCO weakness. The fix is the weekly section-state brief to the PSG — surface what's broken, name what you're fixing, name what you need from the PSG to close the gap.

Career Decisions at This Rank

  • Section chief tour at line BCT FA battery vs. specialty SSG slot — Master Gunner equivalent / Drill Sergeant / Recruiter / TRADOC instructor at the 434th FA Brigade Fort Sill.
    The default 13B SSG path is section chief at a line BCT FA battery — the load-bearing E-6 seat at the gun. Specialty slots produce different NCOER narratives: Drill Sergeant assignment (24 months at 13B OSUT under the 434th FA Brigade at Fort Sill, the X4 Drill Sergeant ASI on the record brief) is the highest-visibility institutional-Army option and a documented board-differentiator; Recruiter assignment (79R / 79S, 36 months) is the parallel TDA option with assignment incentive pay; TRADOC instructor at the 434th FA Brigade / FA School puts you in the schoolhouse you came through as cadre. Each pulls you off the gun for 24-36 months. The SSG who took the line section chief tour first then the institutional tour second is the SSG whose record brief reads as a senior NCO who built the section AND served the regiment; the SSG who took only the institutional tour is the SSG whose section-chief execution credibility shows as an unfilled bullet at the SFC slate.
  • Master Fires Sergeant Course pursuit timing — pursue at E-6 or defer to E-7.
    The Master Fires Sergeant Course at Fort Sill is the FA branch's senior NCO differentiator credential — the FA Center of Excellence's senior-fires-NCO professional course that produces the master-fires-sergeant-qualified NCOs who run the FA battalion's gunnery program. Slot allocation runs through the FA battalion S-3 NCOIC and the brigade FA CSM. The conversation starts at SSG with the PSG and the BC. SSGs who pursued the course at E-6 are visibly differentiated at the SFC slate; SSGs who deferred to E-7 still pin SFC but enter the SFC slate without the credential. The decision: pursue if the PSG and the BC nominate and the slot exists, defer honestly if the section's operational tempo blocks attendance, decline if the family-separation math does not work. The credential is durable across the senior NCO career — it differentiates the SFC who pins MSG/1SG from the SFC who doesn't, and it is the visible bullet that separates the senior FA NCO from the average senior FA NCO.
  • 131A FA Targeting Technician warrant officer accession packet — pursue or stay on the SFC track.
    The 131A FA Targeting Technician is the field-artillery-fires warrant officer specialty — accessed via WO Strength Branch packet submission, WO Officer Candidate School at Fort Novosel (formerly Fort Rucker, renamed in 2023), and the 131A WOBC at Fort Sill. The career model is different — WO is technical-specialist track with longer service obligation, different promotion math (CW2 through CW5), different post-service profile (the 131A WO is a senior fires planner at brigade, division, corps, and joint level), and different family-separation cadence. The decision window for most fires senior NCOs is the SSG to SFC range, because the WO accession process consumes 9-12 months and the older the candidate, the harder the family math. Most cannon-crew SSGs stay on the gun track and pin SFC firing-platoon-sergeant; deviations into 131A WO exist and are real. The decision is honest self-assessment: are you a senior NCO leader (SFC track) or a technical-specialist planner (131A WO track)? Both paths produce credible fires leaders.
  • SLC slot timing — pursue at the first available slot or align with the E-7 zone window.
    SLC at Fort Sill is the SFC STEP gate. The slot request runs through the FA battalion S-3 to FA branch HRC. Slot availability tightens as the year-group approaches the E-7 zone; some SSGs get the slot 18-24 months before E-7 board eligibility, some get it 6-12 months out, some get it after a board pass. The decision: pursue the first available slot if the chain releases you, defer honestly only if a CTC rotation or operational tempo blocks attendance. Soldiers who attend SLC with FA branch instructor recognition are differentiated at the SFC slate; soldiers who phone the course are flagged for the bench-tier discussion. The slot is the credential and the network simultaneously — the SLC classmates are your senior FA NCO peer cohort for the next 15 years.
  • Reenlistment / SRB decision at first SSG ETS window — stay on the gun track or transition.
    The 13B SRB (Selective Retention Bonus) for E-6 is published in the current MILPER message and varies year over year with FA branch retention math. The reenlistment conversation with the FA branch career counselor at the section-chief ETS window is structured around three options: stay 13B on the SFC track, pursue the 131A WO accession (above), or transition (ETS). The decision: stay if the SFC track timing aligns with the BC's read of your bench tier and the Master Fires Sergeant Course conversation is in motion; transition only if the post-service market is genuinely open and the credential stack supports the move. Most SSGs at this rank stay; deviations exist. Pull the current SRB MILPER before signing — the SRB tier and zone shift cycle to cycle.

How the Seat Varies by Unit Type

  • ABCT (Armored BCT) M109A6 Paladin / M109A7 PIM section chief at 1AD, 1ID, 3ID, 4ID, 1CD — Paladin self-propelled 155mm.
    The ABCT cannon section chief runs a Paladin section — M109A6 Paladin or M109A7 Paladin Integrated Management (PIM, the upgraded chassis program currently fielding across the ABCTs). Section composition includes the Paladin crew (driver, gunner, cannoneer, ammo team) plus the FAASV (Field Artillery Ammunition Supply Vehicle, M992) crew that feeds the howitzer. The platform is self-propelled, tracked, fully digital fire control; the section moves with the maneuver brigade on Bradley / Abrams pace. OPTEMPO is the ABCT's gunnery-and-CTC cycle (NTC heavy rotation, Europe rotational presence, gunnery density at Fort Cavazos — formerly Fort Hood, renamed 2023 — Fort Carson, Fort Bliss, Fort Riley). The ABCT cannon section chief who comes up through Paladin speaks heavy-armor FA fluently and is differentiated for ABCT-aligned SFC slates.
  • IBCT (Infantry BCT) M119A3 105mm section chief at 10th MTN, 25th ID, 101st AAB, 82nd ABN, 173rd ABN.
    The IBCT cannon section chief runs an M119A3 section — the digital-fire-control 105mm towed howitzer that replaced the M119A2 across the IBCT FA battalions. Section composition is lighter and faster than Paladin — towed howitzer with HMMWV / FMTV prime mover, smaller crew footprint, more dismount-capable for the section in air-assault or airborne operations. The platform is towed, digital fire control, faster emplacement than M777 or Paladin. OPTEMPO is the IBCT's rotational readiness model — JRTC rotations (the IBCT home rotation), JMRC rotations for the European-aligned brigades, deployments to CENTCOM / AFRICOM / EUCOM rotational presence. The M119A3 section chief who comes up through IBCT speaks light-fight FA fluently and is differentiated for IBCT-aligned SFC slates including airborne (82nd ABN at Fort Liberty — formerly Fort Bragg, renamed 2023) and air-assault (101st AAB at Fort Campbell) brigades.
  • SBCT (Stryker BCT) M777A2 155mm section chief at 2nd Cav (Europe), 1st SBCTs at JBLM / Fort Johnson / Wainwright.
    The SBCT cannon section chief runs an M777A2 section — the digital-fire-control 155mm towed howitzer that is the medium-mobility FA platform across the SBCTs and some IBCT FA battalions (verify against current SBCT TO&E). Section composition is between IBCT and ABCT — M777A2 towed howitzer with HMMWV / FMTV prime mover (some units field the LW155 prime mover variant), digital fire control, the Excalibur precision-guided round capability where fielded. OPTEMPO is the SBCT's rapid-deployment and rotational presence model — 2nd Cav rotates in Europe, the SBCTs at JBLM run a mix of JRTC rotations (including Fort Johnson — formerly Fort Polk, renamed 2023 — home of JRTC) and Pacific / European rotational presence. The M777 section chief who comes up through SBCT speaks medium-mobility FA fluently.
  • 75th Ranger Regiment / SF Group / 160th SOAR senior fires NCO section-chief-equivalent track (the SOF FA / cannon support track).
    The SOF cannon support track is a parallel career model. The 75th Ranger Regiment Regimental Special Troops Battalion has a Fires element with 13B cannoneers in a Ranger-Regiment-specific organizational structure — selection runs through RASP and Ranger Regiment-specific assignment. The SF Group support battalions have FA support roles with 13B cannoneers in select billets. The 160th SOAR fires support is a different track. The standard is higher in every dimension — OPTEMPO, training, joint integration, deployment cadence. The slate at SSG / SFC level prefers the SOF fires NCO with a clean track record and the institutional credentials. Most SOF cannon-crew senior NCOs came up through line BCTs and selected over; deviations exist.
  • TRADOC / 434th Field Artillery Brigade Fort Sill — 13B OSUT cadre, FA School schoolhouse senior cadre.
    The 434th Field Artillery Brigade at Fort Sill is the 13B OSUT host brigade and the FA School institutional schoolhouse. Drill Sergeant tours (24 months under the 434th, the X4 ASI on the record brief) and TRADOC instructor billets at the 434th and at the FA School (BLC, ALC, SLC cadre by MOS) are the institutional career-broadener at this rank. The OPTEMPO is calmer than line BCT FA but the bench-building work is institutional — the 434th cadre builds the next decade of the regiment's senior leadership. The X4 Drill Sergeant ASI and the institutional credential are visible on the slate. The SFC bench at the FA Center of Excellence reads heavily on the 434th tour for soldiers on the senior FA NCO trajectory.

What Good Looks Like at This Rank

The good SSG 13B section chief runs a howitzer section that performs identically whether he is on the gun, at sick call, or in the battery TOC. The section's Table VI is signed; first-round time leads the battery; ARTEP-MTP rating on the fire-mission collective tasks reads T at the FA battalion CSM's review; the section's sensitive-item and Class V accountability across a 24-month tour is the FA battalion's reference; the gunner is gun-qualified and squared and ready for the next gunner-track institutional course; the assistant section chief is SLC-bench; the ammo team chief is BLC-bench. His SGTs re-enlist, get the school slot, and the BC is willing to lose him to the schoolhouse because everyone knows he comes back as the SFC the FA battalion needs. His own NCOER profile is honest — the senior rater (the BC or the FA battalion CSM depending on the rating-scheme) can defend every bullet, the FA battalion CSM knows the soldiers who got selected from his ratings, and the year-group looks at his profile and sees the bench the section produced. SLC graduation is on the record brief; the BC and the FA battalion CSM have named him on the bench for the next E-7 slate; the Master Fires Sergeant Course conversation is in motion; the 131A FA Targeting Technician warrant officer packet decision is either pursued, honestly declined with a clear SFC-track rationale, or still on the table with a decision date inside the next 12 months. The SSG who is being groomed for SFC looks different from the SSG who is competent at E-6. The grooming SSG is the one who graduated SLC with FA branch instructor recognition (not just completion), who has two SGTs on the SSG bench he is actively building toward the next E-6 board, whose section's first-round time is the FA battalion's named reference in the BC's BUB, whose section's CTC rotation fires AAR has the section chief named in the credit lane, whose NCOER profile across the most recent 2-3 reports is the cleanest in the firing battery, and who is honestly weighing the 131A WO packet decision instead of avoiding it. The FA battalion CSM and the brigade FA CSM read both the credential stack and the bench-build over 36 months; the SSG who built both is the SSG who pins SFC and gets the firing-platoon-sergeant slate.

Preview — The Next Rank

Sergeant First Class 13B is the firing-platoon-sergeant rank — the senior NCO in a firing platoon of three-to-four howitzer sections and their crews. The seat changes meaningfully: you are no longer running a 7-9 soldier section, you are running a 20-30 soldier firing platoon, mentoring a bench of SSG section chiefs, owning the platoon's gunnery program, and operating as the senior enlisted voice in the firing battery alongside the BC and the FDO. The BC knows your name; the FA battalion CSM trusts you to run the gunnery read of the firing battery. The institutional development pivots from SLC (the E-6 to E-7 STEP gate, behind you at SFC) to MLC (Master Leader Course at NCOLCoE Fort Bliss, the E-7 to E-8 STEP gate); the Master Fires Sergeant Course conversation moves from "consider it" to "execute it" — it is THE differentiator credential for SFC → MSG/1SG selection in FA, and it is the visible bullet that separates the SFC who pins MSG from the SFC who doesn't. The 13Z conversion at SFC is the other rank-defining institutional move. 13B converts to 13Z (Field Artillery Senior Sergeant) at SFC — a senior NCO consolidation MOS that broadens the senior FA NCO across the cannon, FDC, and gunnery worlds for the 1SG / MSG / SGM / CSM slate. Most cannon-crew SFCs stay on the gun track within the 13Z umbrella rather than go fully generalist; the 13Z designation reads as the senior NCO progression marker on the record brief without changing the soldier's day-to-day execution as a firing-platoon-sergeant. The 131A FA Targeting Technician warrant officer accession window narrows further at SFC; soldiers who deferred the decision at SSG and are considering it at SFC have a narrower window — typically mid-SFC is the last comfortable point. The pressure at SFC is the bench-build pressure. Where SSG built two SGTs and ran one gun crew, SFC builds three-to-four SSG section chiefs into SFC-board-ready candidates without losing the personal edge on the next MLC-level institutional credential. NCOER writing scales from two-to-three bullets per cycle to four-to-five bullets per period that pick the next batch of SSG section chiefs across the brigade. The career-broadening fork (Drill Sergeant at the 434th FA Brigade Fort Sill, Recruiter, TRADOC instructor at the FA School, NTC / JRTC / JMRC OC/T, USASOC enabler) becomes the SFC-rank decision; the post-service market planning conversation begins in earnest at mid-SFC with defense-contractor FA-systems leadership (BAE M109 PIM cadre, Lockheed Martin Excalibur cadre, Raytheon Excalibur cadre, Hanwha Defense USA K9 cadre), training-center contractor leadership (the OC/T contractor billets at NTC / JRTC / JMRC), and federal civil service contacts at the FA Center of Excellence at Fort Sill.
FAQ

13B E6 — Frequently Asked Questions

Q01What does a E6 13B (Cannon Crewmember) actually do?
You run a 7-9 soldier howitzer section — gunner, assistant gunner, ammo team chief, cannoneers, and the prime mover crew — and you are responsible for their training, their equipment, their lives, and the rounds they put downrange.
Q02What's the most important thing to know as a E6 13B?
Staff Sergeant is the rank where the howitzer is yours.
Q03What does a typical day look like for a E6 13B?
Time-blocked day at the E6 13B rank tier: 0500 Wake. PT uniform on. Phone check — overnight section events. Cannoneer in trouble? Section equipment issue (Paladin tracked variant maintenance, M777 prime mover deadline, M119A3 fire control fault)? FAASV ammunition discrepancy? The SSG who lets the phone go to voicemail at this rank is the SSG who hears about it from the PSG the wrong way, 0530 PT formation with the firing battery or the FA battalion. You report section accountability to the PSG;…
Q04What mistakes get E6 13B soldiers fired or relieved?
DUI / Article 15 / fraternization at this rank — career-ending in the FA community. The 13B senior NCO chain is structurally small; the BC, the FA battalion CSM, the brigade FA CSM, and the FA branch senior NCO chain at Fort Sill all hear within 72 hours, and the next E-7 board reads it on paper; Pinning the Sergeant skills onto the Staff Sergeant role. The team-leader / assistant-section-chief instincts that got you E-5 don't scale; the section needs you planning, resourcing,…
Q05What career decisions matter most at the E6 13B rank tier?
Section chief tour at line BCT FA battery vs. specialty SSG slot — Master Gunner equivalent / Drill Sergeant / Recruiter / TRADOC instructor at the 434th FA Brigade Fort Sill — The default 13B SSG path is section chief at a line BCT FA battery — the load-bearing E-6 seat at the gun. Specialty slots produce different NCOER narratives: Drill Sergeant assignment (24 months at 13B OSUT under the 434th FA Brigade at Fort Sill, the X4 Drill Sergeant ASI on the record brief) is the highest-visibility institutional-Army option and a documented board-differentiator; Recruiter assignment (79R / 79S,…
Q06What's next after E6 for a 13B (Cannon Crewmember) in the Army?
Sergeant First Class 13B is the firing-platoon-sergeant rank — the senior NCO in a firing platoon of three-to-four howitzer sections and their crews.
Q07What manuals and regulations does a E6 13B need to know cold?
TC 3-09.81 — Field Artillery Manual Cannon Gunnery.; TC 3-09.8 — Field Artillery Gunnery; ATP 3-09.50 — The Field Artillery Cannon Battery.; FM 3-09 — Field Artillery Operations; ATP 3-09 — Fires.

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Published by the Honest MOS Editorial DeskVerified against DoD/.gov sourcesUpdated May 2026Editorial standards