The Ruger GP100 in .357 Magnum with 6-inch barrel in stainless steel finish. Long-barrel stainless GP100 for target and hunting use where corrosion resistance and maximum velocity are both priorities. Type: Revolver Action: DA/SA Caliber: .357 Mag Capacity: 6 Year introduced: 1985, USA Weight: 45 oz Overall length: 11.5" Status: Active Intended use: Target, Hunting