The Magnum Research BFR in .500 Smith and Wesson Magnum with 10-inch barrel is the most powerful BFR configuration, chambered in the highest-energy commercially available revolver cartridge. The .500 S&W Mag generates over 2,600 ft-lbs of muzzle energy and is suitable for any living creature on Earth. The 10-inch barrel extracts maximum velocity from this cartridge. Type: Revolver Action: Single-Action Caliber: .500 S&W Mag Capacity: 5 Year introduced: 2003, USA Weight: 4.5 oz Overall length: 17" Status: Active Intended use: Hunting, Collecting