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Rifles, Reloading, Optics, Equipment
Gunsmithing
7RM + 180 ELD-M and reamer selection question
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<blockquote data-quote="idahoorion" data-source="post: 1373015" data-attributes="member: 66122"><p>CS, I suggest a min sammi spec on the case body, some tighter match chambers will be so tight a off the shelf die might not be enough, I have one of these and get "clickers" unless I use a small base die. mine is a .188 freebore, and it's about perfect for 168's , 180gr. bearing surface is seated just under neck shoulder junction so it could be longer for them. I was told .220 was what the 180's need. No turn neck, I would think you want .003 to .004 clearance at least. get a piece of brass, I suggest Norma, seat the bullet the way you want it (check for mag length fitment) and send it in (no primer no powder of course) and let them get the specs for your reamer from that. </p><p></p><p>good luck with your new hammer</p><p>Idahoorion</p></blockquote><p></p>
[QUOTE="idahoorion, post: 1373015, member: 66122"] CS, I suggest a min sammi spec on the case body, some tighter match chambers will be so tight a off the shelf die might not be enough, I have one of these and get "clickers" unless I use a small base die. mine is a .188 freebore, and it's about perfect for 168's , 180gr. bearing surface is seated just under neck shoulder junction so it could be longer for them. I was told .220 was what the 180's need. No turn neck, I would think you want .003 to .004 clearance at least. get a piece of brass, I suggest Norma, seat the bullet the way you want it (check for mag length fitment) and send it in (no primer no powder of course) and let them get the specs for your reamer from that. good luck with your new hammer Idahoorion [/QUOTE]
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7RM + 180 ELD-M and reamer selection question
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