[ChildOfThe60s]

Simply put, the 9mm full-metal jacket round fired from a Beretta M9 isn't big enough to stop and drop every opponent a soldier encounters

Is the military using FMJ for combat ammo? If that is standard, I don't think a larger caliber is going to improve the take down capabilities.

When my kid was a cop they carried 40 caliber Sigs. P226, I *think* but I can't swear to it. She liked it a lot, but when she left that line of work it was out of her budget for personal use.

[Jeff Chandler]

FMJ is standard for combat. It might even be required by some treaty or convention.