The S&W Model 500 fires the most powerful commercially available revolver cartridge, the .500 S&W Magnum, from an 8.375-inch barrel. X-Frame construction handles pressures no previous revolver could contain. Type: Revolver Action: Double-Action Caliber: .500 S&W Magnum Capacity: 5 Year introduced: 2003, USA Weight: 72.5 oz Overall length: 15" Status: Active Intended use: Hunting, Silhouette, Collector