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Rifles, Reloading, Optics, Equipment
Reloading
7.62x51 Brass Sorting
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<blockquote data-quote="cdherman" data-source="post: 2999058" data-attributes="member: 12282"><p>Weight sorting DOES make sense, but only after head stamp etc. People that say that you can only determine internal capacity by direct measurement fail to understand that YOUR rifle chamber has a fixed (we hope for sure) internal dimension and after 1-3 firings, your brass now has filled that dimension. All that is left is simply the internal capacity inside the brass. Since brass is roughly 10x more dense than powder, it takes a LARGE variation in case capacity to matter. </p><p>Head stamp sorting accounts for varying annealing, neck thickness, flash holes etc. These are all quite important. </p><p></p><p>But in a given lot of like stamped cases, individual case capacity measurement with water is not needed. Should you desire to go to the next level, weight sorting is fine, individual water capacity is a redundant. Could you do it for a few cases to get an average if you are using quickload etc? Suspect it could be useful there since QL does have that parameter as an input. I own QL and have never bothered. </p><p></p><p>Don't let the water capacity quacks drive you crazy -- not needed. Sorting cases by headstamp however matters in many ways. </p><p></p><p>Thereafter, you need to shoot same cases into same gun, if accuracy matters. If you are just banging away, then learn to anneal (not a bad idea generally) and full length resize.</p><p></p><p>Do remember to trim to length however, in whatever process you embark upon, especially if FL resizing.....</p></blockquote><p></p>
[QUOTE="cdherman, post: 2999058, member: 12282"] Weight sorting DOES make sense, but only after head stamp etc. People that say that you can only determine internal capacity by direct measurement fail to understand that YOUR rifle chamber has a fixed (we hope for sure) internal dimension and after 1-3 firings, your brass now has filled that dimension. All that is left is simply the internal capacity inside the brass. Since brass is roughly 10x more dense than powder, it takes a LARGE variation in case capacity to matter. Head stamp sorting accounts for varying annealing, neck thickness, flash holes etc. These are all quite important. But in a given lot of like stamped cases, individual case capacity measurement with water is not needed. Should you desire to go to the next level, weight sorting is fine, individual water capacity is a redundant. Could you do it for a few cases to get an average if you are using quickload etc? Suspect it could be useful there since QL does have that parameter as an input. I own QL and have never bothered. Don't let the water capacity quacks drive you crazy -- not needed. Sorting cases by headstamp however matters in many ways. Thereafter, you need to shoot same cases into same gun, if accuracy matters. If you are just banging away, then learn to anneal (not a bad idea generally) and full length resize. Do remember to trim to length however, in whatever process you embark upon, especially if FL resizing..... [/QUOTE]
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7.62x51 Brass Sorting
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