Hi, I found that when setting up the head space in the new barrel that I couldn't find a case that was on. 754". So used a case that was 0.750" and used a piece of paper as a feeler Guage as it is 0.004"thick. Shown in photo.
Perhaps Military Ammo has crimped primers to make up for the variations in head space, maybe a reasonable knowledgeable members may be able to let us know.
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