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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Full Length or Neck Only; What's Best Resizing for Accuracy?
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<blockquote data-quote="tim_w" data-source="post: 1817719" data-attributes="member: 11132"><p>[4QUOTE="Bart B, post: 1817554, member: 5302"]</p><p>It doesn't matter if the fired case body diameters are sized down .001 or .003 inches. The cases will be positioned very repeatable in the chamber from shot to shot when fired. Case bodies often touch the chamber when fired.</p></blockquote><p></p><p> You are hopping around on the topic of effect it seems. The topic of relationship between die spec to chamber spec in terms of the amount of sizing was in response to your comment about 40+ reloadings FL sizing the case. It was not about accuracy potentail of how much a case is sized. There is no getting around that the more a case is worked past its yield/snap back the more it will work harden to the point of failure i.e. the more a case dimensions are expanded and then sized back down the shorter its duty life. Be it 20 vs 40 cycles or 5 vs 10.</p><p></p><p>I see zero beneficial reason in a hunting rifle for sizing cases more than is needed for reliable feeding/extraction. These are not combat focused guns i.e mil spec M4, M14, 1903 etc that need to work in those conditions and rd counts between basic maintance to include cleaning and the larger tolerances and config to allow for this.</p><p>[/QUOTE]</p>
[QUOTE="tim_w, post: 1817719, member: 11132"] [4QUOTE="Bart B, post: 1817554, member: 5302"] It doesn't matter if the fired case body diameters are sized down .001 or .003 inches. The cases will be positioned very repeatable in the chamber from shot to shot when fired. Case bodies often touch the chamber when fired. [/QUOTE] You are hopping around on the topic of effect it seems. The topic of relationship between die spec to chamber spec in terms of the amount of sizing was in response to your comment about 40+ reloadings FL sizing the case. It was not about accuracy potentail of how much a case is sized. There is no getting around that the more a case is worked past its yield/snap back the more it will work harden to the point of failure i.e. the more a case dimensions are expanded and then sized back down the shorter its duty life. Be it 20 vs 40 cycles or 5 vs 10. I see zero beneficial reason in a hunting rifle for sizing cases more than is needed for reliable feeding/extraction. These are not combat focused guns i.e mil spec M4, M14, 1903 etc that need to work in those conditions and rd counts between basic maintance to include cleaning and the larger tolerances and config to allow for this. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Full Length or Neck Only; What's Best Resizing for Accuracy?
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