The Ruger Old Army is a modern percussion cap-and-ball revolver built with modern investment-cast steel construction. Unlike the original 1860s-era Remington and Colt percussion revolvers it replicates, the Old Army uses modern materials and coil springs, making it far more durable than original antiques. A favorite among black powder shooters and cowboy action competitors who shoot the cap-and-ball category. Type: Revolver Action: Single-Action Caliber: .45 Caliber (Black Powder) Capacity: 6 Year introduced: 1972, USA Weight: 46 oz Overall length: 13.5" Intended use: Single-Action