>>64165162
Classic SIG shenanigans. Anyways, the original "objective" was Level IV defeat at 300 meters using the steel-core XM1186. This is obviously impossible given current specs unless their idea of a Level IV is a cheap piece of shit from Linry, literal $23 a pop bottom-shelf chinesium. The tungsten core XM1184 was to be held in reserve for future high-level plates and/or defeating Level IV at extreme standoff - a kind of "reverse XSAPI" if you will.
I think the expectation was also that Russian body armor was more competent than Ukraine proved it to be and the US would be facing 7N37-resistant turbo granits occasionally enough to need a high-velocity tungsten-core AP load.