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Hunting
Long Range Hunting & Shooting
Case Dimension question?
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<blockquote data-quote="J E Custom" data-source="post: 1681507" data-attributes="member: 2736"><p>SAMMI Maximum neck diameter says .276 some chambers are more or less than this so I would recommend that you measure a fired case and that would tell you within .001 (Allowing for spring back) of what your neck chamber dimension actually is.</p><p></p><p>Then after loading a round of this other brass, you should have a .003 to .004 smaller loaded neck diameter than your chamber neck diameter.</p><p>To prevent over pressure. Less than .003 is never recommended unless the necks are turned to a precise thickness and even then pressures can appear at .002 thousandths. Up to .008 is still Ok but some consider it excessive on all but dangerous game</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1681507, member: 2736"] SAMMI Maximum neck diameter says .276 some chambers are more or less than this so I would recommend that you measure a fired case and that would tell you within .001 (Allowing for spring back) of what your neck chamber dimension actually is. Then after loading a round of this other brass, you should have a .003 to .004 smaller loaded neck diameter than your chamber neck diameter. To prevent over pressure. Less than .003 is never recommended unless the necks are turned to a precise thickness and even then pressures can appear at .002 thousandths. Up to .008 is still Ok but some consider it excessive on all but dangerous game J E CUSTOM [/QUOTE]
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Case Dimension question?
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