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Rifles, Reloading, Optics, Equipment
Reloading
Case too tight
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<blockquote data-quote="elkaholic" data-source="post: 387172" data-attributes="member: 13833"><p>Mike......I had this EXACT same problem with my 300 ultra. Two or three firings and you had to throw the case away even with moderate loads. As I mentioned in an above post, many manufacturers dies do not size the case down sufficiently "at the web"! Measure a fired case and then a resized case and see for yourself. An unfired factory case will have about .005" clearance. Most of the dies are very near chamber spec and once the web is expanded fully to chamber size, the dies will not size it back sufficiently. The larger diameter the case (magnun) the more clearance is needed. I found with my ultra that if I didn't have at least a thou clearance when chambering, the case would likely not extract upon firing. I complained about this to my gunsmith and he confirmed what I am stating. Try it and see! My guess is that you have about 1/2 thou after you have resized when the cases are sticking......Rich</p></blockquote><p></p>
[QUOTE="elkaholic, post: 387172, member: 13833"] Mike......I had this EXACT same problem with my 300 ultra. Two or three firings and you had to throw the case away even with moderate loads. As I mentioned in an above post, many manufacturers dies do not size the case down sufficiently "at the web"! Measure a fired case and then a resized case and see for yourself. An unfired factory case will have about .005" clearance. Most of the dies are very near chamber spec and once the web is expanded fully to chamber size, the dies will not size it back sufficiently. The larger diameter the case (magnun) the more clearance is needed. I found with my ultra that if I didn't have at least a thou clearance when chambering, the case would likely not extract upon firing. I complained about this to my gunsmith and he confirmed what I am stating. Try it and see! My guess is that you have about 1/2 thou after you have resized when the cases are sticking......Rich [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Case too tight
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