W.J. Jeffery & Co. Sporter in .600 Nitro Express with 24-inch barrel. The original single-shot and bolt-action offering from the inventor of .600 NE; a historically priceless piece of British gunmaking. Type: Rifle Action: Bolt-Action Caliber: .600 Nitro Express Capacity: 2 Year introduced: 1903, UK Weight: 18 oz Overall length: 44" Status: Discontinued Intended use: Dangerous Game, Safari