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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Proper brass sorting
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<blockquote data-quote="Mysticplayer" data-source="post: 28437" data-attributes="member: 8947"><p>This has been a topic of much debate and there are other posts on this board. For me, what matters is case volume and brass quality.</p><p></p><p>I will have to assume that brass from the same company and same lot are as close to identical as can be manufactured. You could of course anneal necks just to make sure.</p><p></p><p>On the volume issue, I have found that cases vary very little in internal volume dispite varying quite a bit in weight. My thought is that the extractor groove is one of the largest sources of weight error but has no affect on the accuracy of the brass. So you could have brass that weighs the same but have different internal volume.</p><p></p><p>I sort my fireformed brass after neck/FL sizing by trimming all to the same length. Then I use a very fine powder and dump from case to case, tapping to make sure that it all goes in. If any case is significantly bigger or smaller, I cull that (very few get culled). The rest are loaded with an accurate load and test fired. Any shot that is a flyer gets retested. If it shoots outside the group again, it gets tossed.</p><p></p><p>This way I have been able to get match accuracy from all types of brass, including military stuff. They don't weigh the same but shoot the same. What matters more to you?</p><p></p><p>Jerry</p></blockquote><p></p>
[QUOTE="Mysticplayer, post: 28437, member: 8947"] This has been a topic of much debate and there are other posts on this board. For me, what matters is case volume and brass quality. I will have to assume that brass from the same company and same lot are as close to identical as can be manufactured. You could of course anneal necks just to make sure. On the volume issue, I have found that cases vary very little in internal volume dispite varying quite a bit in weight. My thought is that the extractor groove is one of the largest sources of weight error but has no affect on the accuracy of the brass. So you could have brass that weighs the same but have different internal volume. I sort my fireformed brass after neck/FL sizing by trimming all to the same length. Then I use a very fine powder and dump from case to case, tapping to make sure that it all goes in. If any case is significantly bigger or smaller, I cull that (very few get culled). The rest are loaded with an accurate load and test fired. Any shot that is a flyer gets retested. If it shoots outside the group again, it gets tossed. This way I have been able to get match accuracy from all types of brass, including military stuff. They don't weigh the same but shoot the same. What matters more to you? Jerry [/QUOTE]
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Proper brass sorting
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