Originally Posted by Frank Ettin
That's an interesting study, but you might want to re-think putting aside your .45.
It certainly does confirm that larger bullets generally have a larger chance of creating a one-shot stop.
However, my biggest takeaway from it was the following data:
Average # of Rounds to Incapacitation:
2.45 - 9mm
2.36 - .40 S&W
2.08 - .45 ACP
In other words, chances are good that you'll need to shoot at least twice with all of those calibers. The question for me becomes, "Which of those rounds do I shoot best when I'm shooting fast?"