The 6" stainless Model 66 Combat Magnum is the longest standard production K-Frame configuration, providing maximum .357 Magnum performance in stainless steel. Less common than the 4" service revolver and more unusual than the 2.5" compact. Type: Revolver Action: Double-Action Caliber: 357 Magnum Capacity: 6 Year introduced: 1970, USA Weight: 38.5 oz Overall length: 11.5" Status: Discontinued Intended use: Service / Hunting