We know that the 9mm vs 45 acp debate is endless, but there seems to be little disagreement that the .357 magnum round is a highly effective self defense choice. Yet very few semi autos have been made to handle this caliber. A few more take .357 Sig, but not the revolver based .357 Magnum round. I'm certainly no expert on calibers or guns in general and was curious about this. I admit that my one .357 Mag revolver is hardly ever used to shoot that round, prefering the less expensive, and lower recoil of .38 Special instead.