The Ruger scope mounting system uses a proprietary rail that requires matched scope rings. The Warne 1R7M Ruger rings are matched for fit and height for the M77 and Hawkeye rifles, and the Ruger Super Redhawk pistol. The 2-piece ring set features rings of differing height to match the taper of the receivers. There is no guess work required. The split ring design can handle the recoil of the heaviest loads from either a rifle of handgun.
