Ruger No.1-B Standard in .300 Winchester Magnum with 26-inch barrel. Long-barreled varmint-and-game configuration ideal for open-country African hunting. Type: Rifle Action: Single-Shot Caliber: .300 Win Mag Capacity: 1 Year introduced: 1966, USA Weight: 44 oz Overall length: 43" Status: Active Intended use: Big Game, Safari