JP Semi-Auto Case Gauge .308

Semi-Auto Case Gauge .308 Optimized for semi-automatic rifles, the second generation JP Case Gauge guarantees 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. Features: Specially calibrated to ensure function in semi-auto rifles Guarantees 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