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Rifles, Reloading, Optics, Equipment
Reloading
How do you control neck tension?
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<blockquote data-quote="Mikecr" data-source="post: 394413" data-attributes="member: 1521"><p>I use bushing neck dies(Wilson or JLC). </p><p>My 'tension'(or as mentioned 'interference') is set at .001" after springback.</p><p>For 'grip amount on bearing', which is a release force variance, I adjust via partial sizing. </p><p>I've chosen a convenient starting standard here as 1cal, and it's turned out very well. That is, I neck size to ~.22" down the neck from it's mouth for 22cal bullets, .26" for 26cal bullets.</p><p>I can adjust this easily with these dies(for load development) one way or another.</p><p></p><p>After sizing a batch of necks, I run each through a seating force gauge of mandrel design to verify all will actually seat with the same force(a force chosen during load development). For any that don't, I set aside to stress relieve in another batch.</p><p></p><p>It doesn't make sense to size the entire necks, just because it can be done. Especially when bullet bearing doesn't even reach so deep! Such action is not only bad for brass life, it likely reduces performance potential from a load.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 394413, member: 1521"] I use bushing neck dies(Wilson or JLC). My 'tension'(or as mentioned 'interference') is set at .001" after springback. For 'grip amount on bearing', which is a release force variance, I adjust via partial sizing. I've chosen a convenient starting standard here as 1cal, and it's turned out very well. That is, I neck size to ~.22" down the neck from it's mouth for 22cal bullets, .26" for 26cal bullets. I can adjust this easily with these dies(for load development) one way or another. After sizing a batch of necks, I run each through a seating force gauge of mandrel design to verify all will actually seat with the same force(a force chosen during load development). For any that don't, I set aside to stress relieve in another batch. It doesn't make sense to size the entire necks, just because it can be done. Especially when bullet bearing doesn't even reach so deep! Such action is not only bad for brass life, it likely reduces performance potential from a load. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
How do you control neck tension?
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