I was listening to a internet podcast on ammo. The commentator said that due to advances in modern ammunition that the .380 is just as effective as a 9mm in expansion and penetration. Extrapolating further, many say the the 9mm is just as good as the .45 ACP, therefore the .380 must have the same stopping power as a .45 ACP. I am starting to wonder if I can continue this comparison right on up to the .50 BMG. Wanna kill these ads? We can help!