It might be a good idea for the US to have two pistols, after all, we have two approved pistols now, the M9 & M11. But rather than being different versions of the same cartridge, perhaps it would be best to have one �conventional� pistol in .45 ACP and one �penetrator� in whatever� As for a �penetrator� (being, something that would punch military soft body armor to fill that need) it would make sense to use whatever we finally settle on for a PDW round, if that is ever settled.
