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Rifles, Reloading, Optics, Equipment
Reloading
Case length shrinking?
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<blockquote data-quote="Greasegun" data-source="post: 1776523" data-attributes="member: 112196"><p>Never trimmed my lapua 6.5 creedmoor cases, as they measured about 1.912-1.914 after the first firing. (I didnt buy virgin brass, used brass from Berger factory ammunition) After the second firing they are at 1.908-1.913. I dont remember measuring any that short after the first firing. FL sized them with a bushing FL die after first firing. Have not FL sized yet after 2nd firing, these lengths are on fired unsized cases. </p><p></p><p>Has anyone else experienced this? In the past I had only seen brass grow in length. I hope they dont get much shorter, as I understand a carbon ring can form in the chamber neck area void that isnt occupied by the case neck.</p></blockquote><p></p>
[QUOTE="Greasegun, post: 1776523, member: 112196"] Never trimmed my lapua 6.5 creedmoor cases, as they measured about 1.912-1.914 after the first firing. (I didnt buy virgin brass, used brass from Berger factory ammunition) After the second firing they are at 1.908-1.913. I dont remember measuring any that short after the first firing. FL sized them with a bushing FL die after first firing. Have not FL sized yet after 2nd firing, these lengths are on fired unsized cases. Has anyone else experienced this? In the past I had only seen brass grow in length. I hope they dont get much shorter, as I understand a carbon ring can form in the chamber neck area void that isnt occupied by the case neck. [/QUOTE]
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Reloading
Case length shrinking?
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