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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Slow proof prefit?
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<blockquote data-quote="highdrum" data-source="post: 2955381" data-attributes="member: 13732"><p>I've had proof prefits that have(had) notably undersized chambers showing pressure signs early on brass. One was a prc, others 65 and 6mm creeds. I have some jgs saami reamers on hand, and cleaned them up. After reaming them, I had adequate neck clearance on the 2x 6cm blanks, and proper body dimensions on the 65cm. The prc was opened with AW2 reamer at 0.200 line. All was better after the clean up, running as expected velocity without any psi signs. </p><p></p><p>Proof runs their prefit reamers way too long wearing them down, or they buy in bulk off PTG's ebay page, possible combo of both.</p></blockquote><p></p>
[QUOTE="highdrum, post: 2955381, member: 13732"] I've had proof prefits that have(had) notably undersized chambers showing pressure signs early on brass. One was a prc, others 65 and 6mm creeds. I have some jgs saami reamers on hand, and cleaned them up. After reaming them, I had adequate neck clearance on the 2x 6cm blanks, and proper body dimensions on the 65cm. The prc was opened with AW2 reamer at 0.200 line. All was better after the clean up, running as expected velocity without any psi signs. Proof runs their prefit reamers way too long wearing them down, or they buy in bulk off PTG's ebay page, possible combo of both. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Slow proof prefit?
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