The U.S. Army has started diversifying its supplier base for 155mm artillery shells, moving away from the bottleneck of a single source that has endangered the flow of fresh ammo, according to a top service official.
The service is racing toward a goal of shoring up all major single sources that provide parts or materials for 155mm munitions by the end of 2025.
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The Pentagon is investing billions of dollars to increase the capacity of 155mm munition production as it races to replenish stock sent to support Ukraine’s fight against the Russian invasion, which began in early 2022, and to ensure the U.S. has what it might need should conflict erupt across multiple theaters at once. The Army planned to spend $3.1 billion in FY24 supplemental funding alone to ramp up production.
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Prior to the war in Ukraine, the U.S. could build about 14,400 of the artillery shells per month. But as Ukrainian forces burn through the ammunition for howitzers sent to the country, the U.S. recognized quickly that replenishment could not be done with the current infrastructure.
The service has set a target of producing 100,000 artillery shells per month, but Army officials have shared it has fallen slightly behind schedule. Even so, the Army is now producing 40,000 shells a month, Army Secretary Christine Wormuth said at the Defense News Conference last month, adding that the plan is to reach 55,000 shells a month by the end of the year.
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The Army had been making 155mm shells at a single plant in Scranton, Pennsylvania, and a privately operated facility nearby. All of the shells were transported to one place – Iowa Army Ammunition Plant – where they are packed with explosives.
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The Army is planning to design and construct a domestic TNT production facility, which will likely be at Radford, Bush has said in the past. Once a contract is awarded, the plan is to build it in 48 months. Currently, the U.S. relies entirely on TNT from allies.
The only place that made combustible cartridge cases – Armtec Defense Technologies – was in Coachella, California, well-known for its music festival, but also for being located along the San Andreas Fault with a high risk of large earthquakes. Day & Zimmerman will produce the cases at another location in Texarkana, Texas.
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“There [is] still the occasional single point, if you go down far enough, I’m not sure we can ever eliminate them entirely,” Bush said. “But we can build in more redundancy than we had before, which was, frankly, a very fragile setup where I could give you grid coordinates for like, four buildings in America, and if one of those, something happened tomorrow, we weren’t making anything … it definitely isn’t acceptable now, and we’re trying to get away from it.”
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