also, dont forget that a 45ACP basicly has 500 foot pounds at the muzzle...and Type II body armor will shield from that...yes, it will hurt, but they will "eventually" walk away.
this is a case where you dont want the guy getting up and getting back in the fight. Taliwackers dont care if their buddy gets hit, so sucking up resources by wounding his buddy is not a strategy to use. Bring a BIG STICK!!