Ruger No.1B Standard in .257 Roberts with 26-inch barrel, chambered in a classic pre-war American cartridge that remains a favorite for deer and pronghorn across the American West. Type: Rifle Action: Single shot Caliber: .257 Roberts Capacity: 1 Year introduced: 1969, USA Weight: 80 oz Overall length: 42.5" Status: Active Intended use: Deer hunting / Pronghorn / Mountain game