I found this report by the FBI quite enlightening, and I think the source is credible.
I can summarize with some liberties:
Basically in handgun loads there is no magic caliber.
You should use a round that will reliably penetrate 12" into a human.
Never depend on expanding bullets.
Never depend on fragmenting bullets.
Temporary wound channels with handgun loads are irrelevant.
Bigger calibers are better than smaller calibers.
Worrying about over-penetration is a fallacy. Only a small percentage of your rounds actually hit the target anyway. Worry more about stray rounds.
That said, I like my 9mm just fine, I like my .40, my .45 and my .357 and I think they will all work well. I am buying a .38 revolver for my wife although I believe more rounds is better, I think a revolver is better for her. Today I am carrying a 9mm with 13 rounds, and I don't know if I will carry my .380 as often now, no matter how awesome the bullets are or how easy it is to carry.
Here's the report form the FBI and to me it makes sense.
http://www.firearmstactical.com/pdf/fbi-hwfe.pdf
I can summarize with some liberties:
Basically in handgun loads there is no magic caliber.
You should use a round that will reliably penetrate 12" into a human.
Never depend on expanding bullets.
Never depend on fragmenting bullets.
Temporary wound channels with handgun loads are irrelevant.
Bigger calibers are better than smaller calibers.
Worrying about over-penetration is a fallacy. Only a small percentage of your rounds actually hit the target anyway. Worry more about stray rounds.
That said, I like my 9mm just fine, I like my .40, my .45 and my .357 and I think they will all work well. I am buying a .38 revolver for my wife although I believe more rounds is better, I think a revolver is better for her. Today I am carrying a 9mm with 13 rounds, and I don't know if I will carry my .380 as often now, no matter how awesome the bullets are or how easy it is to carry.
Here's the report form the FBI and to me it makes sense.
http://www.firearmstactical.com/pdf/fbi-hwfe.pdf