The Ruger Blackhawk is the definitive modern single-action revolver, introduced in 1955 chambered in .357 Magnum — the first single-action revolver in that caliber since the Old West. The 4.625-inch barrel is the standard configuration, offering a balance of portability and sight radius. Features coil springs throughout for superior reliability over flat springs in vintage Colt-pattern revolvers. Type: Revolver Action: Single-Action Caliber: .357 Magnum Capacity: 6 Year introduced: 1955, USA Weight: 40 oz Overall length: 10.38" Status: Active Intended use: hunting, target, collector, historical