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Rifles, Reloading, Optics, Equipment
Reloading
Tight chambering brass
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<blockquote data-quote="MagnumManiac" data-source="post: 1100130" data-attributes="member: 10755"><p>The reason is this; as you size and fire your brass, it work hardens, even if you only neck size, the shoulder and body are still 'flexing', as this progresses the brass has less and less springback at varying degrees between cases. The die then has trouble sizing some cases as they are harder and the case resists the sizing. To overcome this, try sizing, then rotate the case 90º and repeat a few times, then hover with the ram at full stroke for 20 secs.</p><p>Annealing the neck helps, especially when running full pressure loads, because brass also 'flows' throughout the case, which hardens the grain structure over time.</p><p></p><p>Hope this helps.</p><p></p><p>Cheers.</p><p>gun)</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 1100130, member: 10755"] The reason is this; as you size and fire your brass, it work hardens, even if you only neck size, the shoulder and body are still 'flexing', as this progresses the brass has less and less springback at varying degrees between cases. The die then has trouble sizing some cases as they are harder and the case resists the sizing. To overcome this, try sizing, then rotate the case 90º and repeat a few times, then hover with the ram at full stroke for 20 secs. Annealing the neck helps, especially when running full pressure loads, because brass also 'flows' throughout the case, which hardens the grain structure over time. Hope this helps. Cheers. gun) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Tight chambering brass
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