Originally Posted by Amplified
Is the .40 S&W really all that much more effective than the 9mm? .45 ACP penetration is awfully pathetic, but it's still a good anti-personal caliber. Out of these three calibers, which would be the best one overall?
45ACP penetration against hard barriers
leaves something to be desired, but in soft tissue it does just fine.
All three calibers will do their job with quality JHPs.