Is there any real evidence that one caliber is a better fight stopper than another?
I'm not really looking to start a caliber war here, or to collect opinion, or favorite loads, or what works well on bears, etc. This is about CCW handguns only.
I'm asking, is there any studies/evidence that shows that there is any significant advantage to a particular caliber to stop a determined attacker. Let's consider these rounds:
.38 spcl - all variations
9mm - all variations
All variations include bullet type, standard +P, +P+
The major issue is incapacitation time. I.e. how long, how many shots until the guy stops doing what he was doing to make you shoot him.