Henry Big Boy Steel in .357 Magnum with 20-inch barrel and blued steel receiver. The blued-steel version of the most popular Big Boy chambering. Type: Rifle Action: Lever-Action Caliber: .357 Magnum Capacity: 10 Year introduced: 2010, USA Weight: 43.5 oz Overall length: 38.5" Status: Active Intended use: Hunting, Recreation, Home Defense, Cowboy Action