Henry Big Boy in .357 Magnum with 20-inch octagonal barrel and brass receiver. Also chambers .38 Special, making it extremely versatile for plinking and hunting small to medium game. Type: Lever-Action Rifle Action: Lever-Action Caliber: .357 Mag Capacity: 10 Year introduced: 2001, USA Weight: 6.8 oz Overall length: 38.5" Status: Active Intended use: Hunting, Cowboy Action, Plinking