The Model 544 is a rare N-frame double-action revolver chambered in .44-40 Winchester, the classic black powder era cartridge that powered both the Winchester 1873 rifle and the Colt Single Action Army. S&W produced it in limited numbers in 1982 for the Texas sesquicentennial celebration. One of the few double-action revolvers ever chambered in .44-40. Type: Revolver Action: Double-Action Caliber: .44-40 Winchester Capacity: 6 Year introduced: 1982, USA Weight: 42 oz Overall length: 10.5" Status: Discontinued Intended use: collector, historical