If there is one thing I have learned over the years, is that research can be done by 10 different groups on the same topic, and they can come up with 10 different conclusions. Oh yea, and everybody has an opinion. I read something the other day that I thought I would share and see how opinions there were on the subject.
The .380 ACP (9x17mm) cartridge is considered a powerful stopper in Europe, where it has a long history as a police service cartridge, but a mouse gun cartridge in the U.S. The reality is somewhere between, but in this case the Europeans are closer to reality. Certainly, the 9mm Luger (9x19mm) cartridge can launch a heavier bullet of the same diameter somewhat faster and the .38 Super or .357 SIG are faster yet. All of these exceed the maximum stopping power of the .380 ACP, given JHP bullets of similar terminal performance. On the other hand, modern .380 loads using JHP bullets like the Federal Hydra-Shok deliver serious stopping power, similar to a .38 Special snub-nose revolver with similar JHP bullets. Thus, .380 pistols are certainly not mouse guns. Nobody in their right mind would want to be shot by a .38 Special revolver or a .380 ACP pistol, no matter how much they might belittle their stopping power! In their extensive stopping power study, Marshal and Sanow found that the Federal 95 grain JHP .380 factory load delivered about 65% one shot stops, compared to 64% one shot stops for the Federal 125 grain JHP .38 Spec. factory load fired from a 2" barrel revolver. To illustrate how important it is to choose a bullet that expands reliably, the (non-expanding) Federal 230 grain FMJ .45 ACP load delivered 64% one shot stops (mostly from a 5" barrel), virtually identical to the short barreled .38 snubby and .380 Auto with JHP ammunition!
The .380 ACP (9x17mm) cartridge is considered a powerful stopper in Europe, where it has a long history as a police service cartridge, but a mouse gun cartridge in the U.S. The reality is somewhere between, but in this case the Europeans are closer to reality. Certainly, the 9mm Luger (9x19mm) cartridge can launch a heavier bullet of the same diameter somewhat faster and the .38 Super or .357 SIG are faster yet. All of these exceed the maximum stopping power of the .380 ACP, given JHP bullets of similar terminal performance. On the other hand, modern .380 loads using JHP bullets like the Federal Hydra-Shok deliver serious stopping power, similar to a .38 Special snub-nose revolver with similar JHP bullets. Thus, .380 pistols are certainly not mouse guns. Nobody in their right mind would want to be shot by a .38 Special revolver or a .380 ACP pistol, no matter how much they might belittle their stopping power! In their extensive stopping power study, Marshal and Sanow found that the Federal 95 grain JHP .380 factory load delivered about 65% one shot stops, compared to 64% one shot stops for the Federal 125 grain JHP .38 Spec. factory load fired from a 2" barrel revolver. To illustrate how important it is to choose a bullet that expands reliably, the (non-expanding) Federal 230 grain FMJ .45 ACP load delivered 64% one shot stops (mostly from a 5" barrel), virtually identical to the short barreled .38 snubby and .380 Auto with JHP ammunition!