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The Basics, Starting Out
Sorting and load development question
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<blockquote data-quote="lancetkenyon" data-source="post: 2234876" data-attributes="member: 68875"><p>I would bet headspace is within .002" or so. As long as you find a long one and bump it back to fit the new chamber correctly, you should be fine. Even with .005" headspace or so, the old brass should work. Just fire form it to your chamber. Virgin and fired 7RM brass can differ by huge amounts for headspace dimensions. I have found differences of .017" before. From 2.104" virgin to 2.121" (using a .420 headspace comparator if I recall the measurements correctly). I bump mine back to 2.118" for a .003" headspace and have up to 11 loadings on my brass.</p></blockquote><p></p>
[QUOTE="lancetkenyon, post: 2234876, member: 68875"] I would bet headspace is within .002" or so. As long as you find a long one and bump it back to fit the new chamber correctly, you should be fine. Even with .005" headspace or so, the old brass should work. Just fire form it to your chamber. Virgin and fired 7RM brass can differ by huge amounts for headspace dimensions. I have found differences of .017" before. From 2.104" virgin to 2.121" (using a .420 headspace comparator if I recall the measurements correctly). I bump mine back to 2.118" for a .003" headspace and have up to 11 loadings on my brass. [/QUOTE]
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Sorting and load development question
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