The Model 610 is an N-Frame revolver chambered in 10mm Auto using full-moon clips. The 10mm cartridge in a revolver combines the power of the .40 caliber auto round with revolver reliability. Reintroduced periodically due to sustained demand. Type: Revolver Action: Double-Action Caliber: 10mm Auto Capacity: 6 Year introduced: 1989, USA Weight: 50 oz Overall length: 11.5" Status: Active Intended use: Competition / Hunting