Warne 30MM Ruger M77 Pa Medium Matte RingsRuger Model Specific fit Sold in pairs, Maxima Ruger rings are packaged in model specific configurations tofit Ruger's proprietary dovetail Warne's Maxima Maxima rings are a solid steel, vertically split ring that handle even the most punishing recoil, or large, heavy scopes. Since each firearm manufacturer has their own proprietary mounting rail design, each ring model must be machined to exacting tolerances for proper fit and function. Because of