For decades the FBI claimed the .40 Smith & Wesson was the optimal personal defense round. But the 9mm versus .40S&W battle rages on. (Photo by FBI) Defensive caliber arguments have been going on ...
I’m not sure when the first 9mm carbine was assembled, but not long after the cartridge debuted in the Luger pistol, people recognized the benefits of running the cartridge through a shoulder-fired ...