The Winchester Model 70 Sporter in .300 Winchester Magnum has been the flagship Model 70 magnum configuration since the cartridge's introduction in 1963. The Sporter's 24-inch barrel and CRF action make it the reference platform for the .300 Win Mag cartridge — the combination is used extensively by professional guides and outfitters for large and dangerous game across North America. Type: Bolt-Action Rifle Action: Bolt-Action Caliber: .300 Win Mag Capacity: 5 Year introduced: 1963, USA Weight: 7.75 oz Overall length: 44.5" Status: Active Intended use: Hunting, Big Game