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Rifles, Reloading, Optics, Equipment
Reloading
Head space getting longer
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<blockquote data-quote="cdherman" data-source="post: 1432348" data-attributes="member: 12282"><p>Well, I use tempilaq 700 IIRC, and I am nearly certain that 475 is WAYYY too cool. So we are back to the assertion that your neck brass was TOO stiff and your expander ball was pulling the shoulder back out.</p><p></p><p>You might correct the problem for now by lapping .002 off the shell holder, but I am worried you will get split neck or case head separation later. </p><p></p><p>Belt mags are finicky, from what I have read, with regards to multiple reloadings. Lots of negative press out there. But, on the other had, the 7mm RM is just about perfect in my opinion, in terms of case to bore capacity, and it shoots very well for many many people. We can start the list of cartridges that have tried to unseat it, few with any manner of success. My 280 AI is nearing completion. My 7SAUM project was a bust. My cousin's stupid factory 7 RM shoots under 1" with all the hand loads I have ever delivered to him, many far tighter. He makes fun of my other efforts.....</p><p></p><p>28 Nosler is going to be interesting over time I suppose....</p></blockquote><p></p>
[QUOTE="cdherman, post: 1432348, member: 12282"] Well, I use tempilaq 700 IIRC, and I am nearly certain that 475 is WAYYY too cool. So we are back to the assertion that your neck brass was TOO stiff and your expander ball was pulling the shoulder back out. You might correct the problem for now by lapping .002 off the shell holder, but I am worried you will get split neck or case head separation later. Belt mags are finicky, from what I have read, with regards to multiple reloadings. Lots of negative press out there. But, on the other had, the 7mm RM is just about perfect in my opinion, in terms of case to bore capacity, and it shoots very well for many many people. We can start the list of cartridges that have tried to unseat it, few with any manner of success. My 280 AI is nearing completion. My 7SAUM project was a bust. My cousin's stupid factory 7 RM shoots under 1" with all the hand loads I have ever delivered to him, many far tighter. He makes fun of my other efforts..... 28 Nosler is going to be interesting over time I suppose.... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Head space getting longer
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