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Rifles, Reloading, Optics, Equipment
Reloading
Case weight vs internal volume
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<blockquote data-quote="Mikecr" data-source="post: 963446" data-attributes="member: 1521"><p>I agree. </p><p>What I've learned in many forum years is that there are truly few truths in reloading.</p><p>Even common notions rarely pass tests across the boards.</p><p></p><p>I guess I didn't keep record of my past H20 testing,, which is frustrating. </p><p>I searched around a bit and found an old BRC thread where a shooter posted his findings with (45) 308WW cases. It appears to me that he did a pretty good job, and so I graphed his results.</p><p>To chart correlation in scale, I subtracted 95gr from all brass weights while leaving H20 raw.</p><p></p><p>He has decent capacity variance for the cartridge, .5grH20, which would theoretically contribute 12fps spread in this cartridge. The brass weight itself varying 1.5gr. He could pick a mean in brass weight, or capacity, and it looks to me like he would end up with about the same number of cases(~30,30). If he chose 30 matching in capacity, his brass weight would not match & vice versa.</p><p></p><p>It would be very interesting to see other tests like this, with other cartridges.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 963446, member: 1521"] I agree. What I've learned in many forum years is that there are truly few truths in reloading. Even common notions rarely pass tests across the boards. I guess I didn't keep record of my past H20 testing,, which is frustrating. I searched around a bit and found an old BRC thread where a shooter posted his findings with (45) 308WW cases. It appears to me that he did a pretty good job, and so I graphed his results. To chart correlation in scale, I subtracted 95gr from all brass weights while leaving H20 raw. He has decent capacity variance for the cartridge, .5grH20, which would theoretically contribute 12fps spread in this cartridge. The brass weight itself varying 1.5gr. He could pick a mean in brass weight, or capacity, and it looks to me like he would end up with about the same number of cases(~30,30). If he chose 30 matching in capacity, his brass weight would not match & vice versa. It would be very interesting to see other tests like this, with other cartridges. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Case weight vs internal volume
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