How about the whole concept of stopping power being important? It matters where you hit someone and how many times, not the caliber.
A local neurosurgeon who has worked trauma in ERs and the Mideast and carries concealed says:
Shooting someone doesn't necessarily stop them, but sometimes they stop because they have seen it on TV and think that's what is supposed to happen. Most gunshot victims die from bleeding out, which can take quite a while (up to 30 min); the time it takes is proportional to your size (because you have more blood). Even if you hit someone in the heart, they won't die for 30 seconds. You can drop them if you hit the central nervous system.
A local neurosurgeon who has worked trauma in ERs and the Mideast and carries concealed says:
Shooting someone doesn't necessarily stop them, but sometimes they stop because they have seen it on TV and think that's what is supposed to happen. Most gunshot victims die from bleeding out, which can take quite a while (up to 30 min); the time it takes is proportional to your size (because you have more blood). Even if you hit someone in the heart, they won't die for 30 seconds. You can drop them if you hit the central nervous system.