The Pentagon Is Printing Propellant — Just Not Where the Bottleneck Is
X-Bow says it has passed 1,100 solid rocket motors built with printed propellant, and the Department of War has now routed $191M in DPA Title III funds into the solid rocket motor base across nine awards since December 2024. But most of that money buys cases, nozzles and insulation — not printed grains — and none of it prints ammonium perchlorate, which still has one qualified U.S. producer.