The Model 66-1 is the first dash variant of the stainless Combat Magnum, produced from 1977 onward. It incorporated early production improvements including revised cylinder stop and hammer modifications. Pre-dash and early dash variants are the most collectible. Type: Revolver Action: Double-Action Caliber: 357 Magnum Capacity: 6 Year introduced: 1970, USA Weight: 36.5 oz Overall length: 9.5" Status: Discontinued Intended use: Service / Law Enforcement