The Model 610 is a large N-frame revolver chambered in 10mm Auto and .40 S&W using moon clips, designed to bring the power of 10mm Auto to a double-action revolver platform. The N-frame provides the strength and weight to manage the 10mm Auto cartridge at volume. The ability to use .40 S&W moon clips in the same cylinder makes it compatible with the most common law enforcement pistol caliber of the era. Type: Revolver Action: Double-Action Caliber: .40 S&W Capacity: 6 Year introduced: 1990, USA Weight: 50 oz Overall length: 9.625" Status: Active Intended use: Competition, Hunting