For many years my "go to" was a 4" 357 Mag revolver like a K or L frame S&W . I knew I had a decent level of power and accuracy that would let me take care of most situationetetts that I'd find myself in. Moving to the semi-auro platform I found the 9mm lacking, the 40 S&W "flippy" and while I live the 45acp lacking in number of rounds. Enter the 357 Sig . Now I have a cartridge that has the power level I've been looking for with a decent number of rounds. I really wish I'd jumped onto the Band Wagon sooner. I really am getting to love this little Power House of a cartridge.