Henry Big Boy in .357 Magnum with 20-inch octagon barrel. Also chambers .38 Special for practice. A versatile combination rifle for small game, pests, and self-defense. Type: Rifle Action: Lever-Action Caliber: .357 Magnum Capacity: 10 Year introduced: 2004, USA Weight: 43 oz Overall length: 38.5" Status: Active Intended use: Hunting, Recreation, Home Defense, Cowboy Action