Not only to regular army guys miss a lot, EVERYBODY misses a lot in a real firefight. On average, at least 75% of rounds do not find their intended tarket in a shootout with an armed adversary, even by trained law enforcement.
A lot to be said for volume. It is my opinion that a body hit with almost any caliber will terminate an attack.
My daily CC is a .380, replaced with a 9mm in more dangerous environs. But that's just me.
Magic
Opportunities always look bigger going than coming!