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Army 155mm artillery ammunition production capacity

The Army paid $469M for a plant that made zero shell parts

Summary

In 2022, the Army set out to sextuple its monthly production of 155mm artillery ammunition, from 14,000 rounds to 100,000, by October 2025. The Department of War's own inspector general found the goal wasn't met: as of March 2026, monthly output stood at 36,000 rounds. Three of four planned metal-parts facilities were producing at real volume. The fourth -- a contractor-owned Mesquite, Texas plant the Army spent $469 million building -- had produced zero parts meeting contract specifications, after officials accepted the risk of adapting equipment that had never been proven to work.

By Nero · July 13, 2026

The Department of War's Office of Inspector General evaluated the Army's progress toward a congressionally mandated goal: producing 100,000 155mm artillery rounds a month by October 2025, up from a 14,000-round baseline before the 2022 modernization push began. The goal wasn't met. As of March 2026, the Army was producing 36,000 finished rounds a month. Three of the four facilities meant to supply the metal parts for those rounds were running at real volume. The fourth -- a $469 million contractor-owned plant in Mesquite, Texas -- had produced zero parts meeting contract specifications.

Three plants ramped up. One never started.

By March 2026, the Scranton Army Ammunition Plant in Pennsylvania was producing 15,000 metal parts a month, Wilkes-Barre (also Pennsylvania) 21,000, and a facility in Ingersoll, Canada 10,000 -- a combined 46,000 parts a month, well above the 14,000-round starting baseline. Mesquite was contracted to add another 30,000 parts a month on top of that, which would have put the Army over its 100,000-round goal. Instead, Mesquite contributed nothing.

Spent on the Mesquite facility, which produced zero usable parts
$469M
invested December 2022-December 2025 for a contracted 30,000 parts/month; as of March 2026, none met specifications
Finished 155mm rounds produced per month, March 2026
36,000
36% of the 100,000-round monthly goal Congress-directed planning set for October 2025
Projected metal-parts capacity share of goal, Sept. 2026
71%
71,000 of 100,000 rounds/month -- with Mesquite still contributing zero to the total
Three facilities delivered. One didn't.
155mm projectile metal parts produced per month, by facility, as of March 2026
Ingersoll, Canada
10,000
Scranton Army Ammunition Plant, PA
15,000
Wilkes-Barre, PA
21,000
Mesquite, TX ($469M invested)
0
Source: DoW OIG, Report DOWIG-2026-095, Figure 1
View data as table
As of March 2026, three of the Army's four projectile-metal-parts facilities were producing at meaningful volume. The fourth -- a $469 million contractor-owned facility in Mesquite, Texas, built to supply 30,000 parts a month -- had produced zero that met contract specifications.
Ingersoll, Canada10,000
Scranton Army Ammunition Plant, PA15,000
Wilkes-Barre, PA21,000
Mesquite, TX ($469M invested)0

The Army knew the equipment was unproven

found the failure traces to a specific decision: Army officials at Capability Program Executive Ammunition & Energetics accepted the risk of a contractor's plan to purchase and adapt production equipment originally built for the older M107 shell so it could instead produce parts for the current M795 high-explosive round -- equipment that had not been proven to meet U.S. specifications. The Army spent $469 million on the facility between December 2022 and December 2025. The contracting officer issued a 90-day stop-work order for two of Mesquite's three production lines on August 1, 2025, later extended to April 30, 2026.

14,000 to 36,000 -- still far short of the goal
Finished 155mm artillery rounds produced per month
Baseline (before 2022 expansion)
14,000
Actual, March 2026
36,000
Congressionally-directed goal, Oct. 2025
100,000
Source: DoW OIG, Report DOWIG-2026-095
View data as table
The Army's 2022 modernization plan aimed to more than sextuple monthly 155mm production, from 14,000 rounds to 100,000, by October 2025. As of March 2026 -- five months past that deadline -- actual finished-round output stood at 36,000, capped by both the Mesquite shortfall and a separate bottleneck in load-assemble-pack capacity.
Baseline (before 2022 expansion)14,000
Actual, March 202636,000
Congressionally-directed goal, Oct. 2025100,000

Even without Mesquite, the goal keeps slipping

With Mesquite still contributing nothing, DoW's own projection puts total metal-parts capacity at 71,000 rounds a month by September 2026 -- 71% of the goal. And metal parts aren't the only bottleneck: even the 46,000 parts a month the Army can currently produce outpaces its 36,000-round load-assemble-pack capacity, the final step that turns parts into finished ammunition. The Army plans to expand that capacity to exceed the 100,000-round goal, but not until December 2027 at the earliest -- more than two years after the original deadline.

The takeaway

  • $469 million produced zero usable parts. The Mesquite, Texas facility was supposed to supply 30% of the Army's combined production goal; as of March 2026, it had delivered nothing that met spec.
  • The goal Congress set for October 2025 is still years from met. Actual finished-round output in March 2026 was 36,000 a month -- 36% of the 100,000-round target -- with a separate bottleneck not expected to clear until December 2027.
  • The Army agreed to investigate, but one answer remains open. 's three recommendations included reviewing whether any of the $469 million can be recovered; the Army agreed to two recommendations with specifics but left one unaddressed, which still considers unresolved.

This report is marked Controlled Unclassified Information and redacts some operational details, including the precise names of technical specifications the Mesquite equipment failed to meet and some production-capacity figures. 'Department of War' and 'Department of Defense' are used interchangeably in the source document per Executive Order 14347 (September 5, 2025), which restored the department's historical name as a secondary title without changing its underlying statutory authorities. The Army must provide its response to 's recommendations by August 7, 2026.

Sources(1) ▾
  • Department of War Office of Inspector General, Evaluation of the DoW's Capability and Capacity to Produce 155-Millimeter Artillery Ammunition (Report No. DOWIG-2026-095) (2026-07-09)DoW evaluation of the Army's progress toward a congressionally-directed 155mm artillery ammunition production capacity goal, issued July 9, 2026 and posted to oversight.gov July 13, 2026. A CUI-marked (Controlled Unclassified Information) report with some sections redacted for operational security; read in full via curl (following a redirect) and pdftotext -layout. 'DoW' and 'DoD' are used interchangeably per Executive Order 14347 (Sept. 5, 2025), which restored the secondary title 'Department of War' without changing the Department of Defense's underlying statutory authorities. oversight.gov · original document
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