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JP Semi-Auto Case Gauge

Optimized for semi-automatic rifles, the second generation JP Semi-Auto 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.


  • 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
Product Instructions

Price: $39.95