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JP Semi-Auto Case Gauge
6/6.5 Creedmoor

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.

While this gauge is cut to match a 6.5 Creedmoor chamber, it will also be useful for 6mm Creedmoor. Both cartridges have identical case dimensions with the exception of neck diameter. So, this gauge can be used to check headspace and overall length as well ensuring case body against bulging or other issues in 6mm Creedmoor.


  • Specially calibrated to ensure function in semi-auto rifles
  • Guarantees ammo fit in a minimum-spec SAAMI chamber
  • Usable for gauging both 6.5 and 6mm Creedmoor ammo
  • 416 stainless steel construction for wear resistance and greater longevity


Product Instructions

Price: $42.95