With some recent threads about 9mm ammunition, I began thinking a few days ago about military ammo. More specifically, with several 9mm US military-issue weapons in service (M9, P226, etc.), I'm curious about the ammunition used in these weapons. I assume that it varies depending upon the mission and environment in which the weapon is being utilized, but it would be interesting to learn what ammo a force such as the SEALs selects and issues, and thus what criteria it places emphasis on when making this selection. Does anyone here have some information to contribute regarding this?