 As a result, these large caliber snubnosed revolvers can provide effective defense from snakes, to wolves, to mountain lions, even large brown bears.Small frame lightweight .38 Special and .357 Magnum revolvers are also ideally suited for hikers and backpackers.Easily carried in a pocket, small holster or fanny-pack, snubnosed revolvers like the Smith & Wesson Model 340PD are ultra-light, 5 shot, .357 Magnums.