Smith & Wesson's X-frame .500 S&W Magnum, the most powerful production revolver ever made at the time of introduction. Required an entirely new X-frame larger than the N-frame to contain the cartridge's pressure. Type: Revolver Action: Double-Action Caliber: .500 S&W Mag Capacity: 5 Year introduced: 2003, USA Weight: 72.5 oz Overall length: 15" Status: Active Intended use: Hunting, Collecting