The Smith & Wesson Model No.1 2nd Issue SA is a usa-made single-action revolver chambered in .22 Short RF, introduced in 1860. Primary use: sport, hunting. Type: Revolver Action: Single-Action Caliber: .22 Short RF Capacity: 6 Year introduced: 1860, USA Weight: 24 oz Overall length: 9" Status: Discontinued Intended use: sport, hunting