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<blockquote data-quote="PrairieGhost" data-source="post: 214615" data-attributes="member: 704">I went through 150 rounds of Creedmoor last week.&nbsp; I keep this up I'll need a new barrel in two years.&nbsp; Right now I am playing with the Nosler 130 RDF.&nbsp; I don't know why I bother when the 143 ELD-X already groups under .2 inches.&nbsp; I think the reason I have been shooting so much is that I have .003 to .007 bullet run out.&nbsp; I do think that at last I found the problem.&nbsp; I bought RCBS Gold Medal Match bushing dies.&nbsp; My neck thickness was .013 to .016 and I turned them all to .013.&nbsp; The problem is the bushings should be set loose so they center on the neck.&nbsp; Well that leaves them .003 off automatically after turning the necks. So I run them through standard dies and sure enough .001 run out.&nbsp; I want to control neck tension to control powder burn etc so now I have an extra step.&nbsp; Size with standard dies, clean cases, open with expander die, neck size, resize with bushing dies, then prime and load.</blockquote>

[QUOTE="PrairieGhost, post: 214615, member: 704"] I went through 150 rounds of Creedmoor last week. I keep this up I'll need a new barrel in two years. Right now I am playing with the Nosler 130 RDF. I don't know why I bother when the 143 ELD-X already groups under .2 inches. I think the reason I have been shooting so much is that I have .003 to .007 bullet run out. I do think that at last I found the problem. I bought RCBS Gold Medal Match bushing dies. My neck thickness was .013 to .016 and I turned them all to .013. The problem is the bushings should be set loose so they center on the neck. Well that leaves them .003 off automatically after turning the necks. So I run them through standard dies and sure enough .001 run out. I want to control neck tension to control powder burn etc so now I have an extra step. Size with standard dies, clean cases, open with expander die, neck size, resize with bushing dies, then prime and load. [/QUOTE]

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