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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: 1458880" data-attributes="member: 11132"><p>Do you have pic you can load of the neck splits so we can see orientation and location. Such as are they splitting longitudinally starting at case mouth or possibly more laterally near the neck shoulder junction area. Also maybe a pic of one thats fired but unsized, then one sized, and finally one loaded. Focus on the neck area.</p><p></p><p></p><p>I would measure the size of a fired case neck OD (as its easier) and then one after the neck is sized. Figure the neck is expanding another thou more than fired measurement. How much the neck brass is moving gives an idea how much work hardening is going on. Also where and the type of splitting can offer some insight. </p><p></p><p>I agree with the statement about possibly impropper annealing is a likely cause. As unless the fire and sized are huge differences proper annealing should allow the necks to last longer. I have some cases fired thru even ARs that go 10+</p></blockquote><p></p>
[QUOTE="tim_w, post: 1458880, member: 11132"] Do you have pic you can load of the neck splits so we can see orientation and location. Such as are they splitting longitudinally starting at case mouth or possibly more laterally near the neck shoulder junction area. Also maybe a pic of one thats fired but unsized, then one sized, and finally one loaded. Focus on the neck area. I would measure the size of a fired case neck OD (as its easier) and then one after the neck is sized. Figure the neck is expanding another thou more than fired measurement. How much the neck brass is moving gives an idea how much work hardening is going on. Also where and the type of splitting can offer some insight. I agree with the statement about possibly impropper annealing is a likely cause. As unless the fire and sized are huge differences proper annealing should allow the necks to last longer. I have some cases fired thru even ARs that go 10+ [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Why am I splitting necks?
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