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Rifles, Reloading, Optics, Equipment
Reloading
Why am I splitting necks?
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<blockquote data-quote="tim_w" data-source="post: 1460064" data-attributes="member: 11132"><p>Here is my take.</p><p>New brass run thru a caliber size expander mandrel die. Turn necks if you do that sort of thing..skimming... whatever. If not move on to FL size no expander ball .002 tension bushing (doubt you will move or need to move the shoulder at all just to iron out the cases and make sure they are consistent) , trim chamfer,.... sort etc... </p><p></p><p>Fired case FL size 0.001 shoulder bump neck bushing to 0.002 neck tension ; no expander ball. See how that works for you. Shoot a few cases repeatedly and see how long they go before a split neck. Then anneal at half the reload count before split neck. That is if you are keeping loads low enough pressure for the brass that there is no primer pocket expansion to where they are no longer under good tension before that.</p></blockquote><p></p>
[QUOTE="tim_w, post: 1460064, member: 11132"] Here is my take. New brass run thru a caliber size expander mandrel die. Turn necks if you do that sort of thing..skimming... whatever. If not move on to FL size no expander ball .002 tension bushing (doubt you will move or need to move the shoulder at all just to iron out the cases and make sure they are consistent) , trim chamfer,.... sort etc... Fired case FL size 0.001 shoulder bump neck bushing to 0.002 neck tension ; no expander ball. See how that works for you. Shoot a few cases repeatedly and see how long they go before a split neck. Then anneal at half the reload count before split neck. That is if you are keeping loads low enough pressure for the brass that there is no primer pocket expansion to where they are no longer under good tension before that. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Why am I splitting necks?
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