The most powerful standard R1 variant, chambered in .300 Winchester Magnum. The ARGO gas system handles magnum pressures reliably without the shooter-adjustable gas valves required by many other semi-auto magnum hunting rifles. Popular for elk, moose, and African plains game. Type: Rifle Action: Semi-Automatic Caliber: .300 Win Mag Capacity: 3 Year introduced: 2004, Italy Weight: 7.1 oz Overall length: 45.75" Status: Active Intended use: Hunting, Big Game, Safari