Smith & Wesson Model 610 Classic in 10mm Auto — the N-frame DA/SA revolver in 10mm with 6.5-inch barrel and classic blue finish. Uses moon clips for the rimless semi-auto cartridge. Type: Revolver Action: DA/SA Revolver Caliber: 10mm Auto Capacity: 6 Year introduced: 2005, United States Weight: 44 oz Overall length: 12" Status: Active Intended use: Hunting, Competition, Target Shooting