The 10mm Auto might never have caught on for its intended role in law enforcement, but it didn’t disappear. Lately, more and more outdoorsmen and women are rediscovering the 10. With full-power loads, it has more punch than a heavy .357 magnum, while being easier to carry, shoot, and reload than a big revolver. Plus, it holds up to twice the ammo. Lots of Alaskans who know much more about bears than I do carry a 10mm for just those reasons.