That was an interesting read. Thanks for posting the paper! As far as the science behind caliber choice, I guess it really comes down to what you can shoot proficiently under duress. I'm a .45 ACP person as the best defensive weapon. However, if I tell a potential buyer that the .45 is the best, but the person hasn't fired a large bore handgun, it may be that the person never really masters the thing. So...if you can master a .380 and that's it, that's what you use for self defense. You have to hit what you're shooting at to save your bacon. Theory goes out the window.
Originally Posted by Cat
I am somewhat out of my element in these auto loader topics, but I'd advise you to get any caliber and get profieient with that gun/caliber before giving any consideration to carrying a gun for social purposes. After that, get whatever you feel comfortable with.