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Hunting
Long Range Hunting & Shooting
Weight sort Lapua 300 Norma Brass???
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<blockquote data-quote="wildcat455" data-source="post: 1616245" data-attributes="member: 102653"><p>Absolutely, blackaj. </p><p>And from what I've learned about case weight variation and volume variation, is although some small weight variations may not affect volume, large weight variations do. Chamber is from the bolt face forward to the lands, you can only squeeze so much brass in that space without affecting internal volume of the case. Physics. </p><p></p><p>And no, I have found no need to sort by volume if cases are in the same lot, and weight variation is small. I do however spot verify volume in my weight groupings. I have found no significant volume variances for those cases. </p><p></p><p>The OP has reported 3 grain variation in weight in his 200 cases. 167 are less than 1.5 gr. He will not have significant volume variation with such a low case weight variation. (.1 gr powder equivalent volume variation, maximum. (that's about 3 kernels of H1000)</p><p>I can just about guarantee there is .2 gr worth of powder equivalent volume variation for the total 200 cases and I maintain that as significant difference that needs to be addressed.</p></blockquote><p></p>
[QUOTE="wildcat455, post: 1616245, member: 102653"] Absolutely, blackaj. And from what I’ve learned about case weight variation and volume variation, is although some small weight variations may not affect volume, large weight variations do. Chamber is from the bolt face forward to the lands, you can only squeeze so much brass in that space without affecting internal volume of the case. Physics. And no, I have found no need to sort by volume if cases are in the same lot, and weight variation is small. I do however spot verify volume in my weight groupings. I have found no significant volume variances for those cases. The OP has reported 3 grain variation in weight in his 200 cases. 167 are less than 1.5 gr. He will not have significant volume variation with such a low case weight variation. (.1 gr powder equivalent volume variation, maximum. (that’s about 3 kernels of H1000) I can just about guarantee there is .2 gr worth of powder equivalent volume variation for the total 200 cases and I maintain that as significant difference that needs to be addressed. [/QUOTE]
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Weight sort Lapua 300 Norma Brass???
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