[rolling_stone]

If I wanted to kill someone wearing a bullet proof vest my first choice would not be a .45 automatic..of course no one ever said bad guys were smart

https://en.wikipedia.org/wiki/Bulletproof_vest#Performance_standards

[meyer]

Indeed. A handful, in general, would not be the best choice.

[xone]

f I wanted to kill someone wearing a bullet proof vest my first choice would not be a .45 automatic.

It is a very accurate round, no one wears armor on their head.