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6.5 mm x 54 Mannlicher Sch. (CIP) Headspace Gauges

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Items that are in stock will ship within 7 days. If not in stock, this item is custom made to order.


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Pacific Tool and Gauge offers two lengths of headspace gauges per rifle caliber. In order from the shortest to longest, they are: MIN and MAX:

  1. MIN: Corresponds to the minimum chamber dimensions. If a rifle closes on a Min gauge, the chamber will accept ammunition that is made to CIP’s maximum specifications. The MIN gauge is essential for checking a newly-reamed chamber in order to ensure a tight, accurate and safe chamber that will accept CIP maximum ammo. Although the MIN gauge is necessary for a gunsmith or armored, it usually has fewer applications for the collector or surplus firearms purchaser.
  2. MAX: Corresponds to the maximum headspace recommends for gunsmiths chambering new, bolt action rifles. To determine if there is excessive headspace, the chamber should then be checked with a gauge. Max gauge is a valuable tool for checking a newly-reamed chamber in order to ensure a tight and accurate chamber.