The 6.5" Model 610 is the target and competition configuration, providing a full sight radius and maximum 10mm Auto velocity. The 6.5" barrel in N-Frame provides a balanced, competition-ready revolver in an unusual cartridge. Type: Revolver Action: Double-Action Caliber: 10mm Auto Capacity: 6 Year introduced: 1990, USA Weight: 50 oz Overall length: 11.5" Status: Active Intended use: Competition / Hunting