[RogueIsland]

Technically, there are almost the same with regard to diameter.

It is less powerful than the 9mm though. Although I often carry one, it is somewhat marginal for self defense. Definitely not heavy artillery.

[bandleader]

I have one .380 pistol(Colt Gov't).If I want to carry something small,I usually go with my Colt Defender.How long will it take for DOD to replace the puny 9mm with the tried and tested stopper .45ACP?

[Mr. Mojo]

Although I often carry one, it is somewhat marginal for self defense. Definitely not heavy artillery.

Then again neither is the 9mm. For me, the minimum self-defense round is the .40 S&W.