JP Case Gauge Stainless .308 Win / 7.62 X 51

Case Gauge Features Optimized for semi-automatic rifles the second generations JP Case Gauge guaranties function of your ammo. If it fits our gauge it will fit even a minimum-depth SAAMI chamber without interference. Take comfort that your ammo will never hold you back Case Gauge Specifications Specially calibrated to ensure function in semi-auto rifles Guaranties ammo fit in a minimum-spec SAAMI chamber 416 stainless steel construction for wear resistance and greater longevity Also gauges all features of .260 Rem. short of concentricity runout American made