Ruger No.1B Standard in .300 Winchester Magnum with 26-inch barrel, offering long-range hunting capability in the single-shot falling-block format. Type: Rifle Action: Single shot Caliber: .300 Winchester Magnum Capacity: 1 Year introduced: 1967, USA Weight: 88 oz Overall length: 42.5" Status: Active Intended use: Long range hunting / Mountain game