Single Action Army in .44-40 Winchester, the original combined-cartridge SAA chambering that could share ammunition with the Winchester 1873 rifle. Type: Revolver Action: Single-Action Caliber: .44-40 Win Capacity: 6 Year introduced: 1873, USA Weight: 40.5 oz Overall length: 10.75" Status: Active Intended use: Cowboy Action, Collecting, Western