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Rifles, Reloading, Optics, Equipment
Reloading
diff in ES between virgin brass and once fired brass
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<blockquote data-quote="MontanaRifleman" data-source="post: 845771" data-attributes="member: 11717"><p>I don't think that's it. In loading and shooting the 300 RUM I have not seen any more than maybe 1 gr difference in case capacity between once fired and virgin brass. I have also had good luck with low density loads in that chambering, 92-93%. Also 1 full gr diff in powder is equivalent to maybe 30-40 fps of velocity, not 80.</p><p></p><p>This is a puzzling situation and I suspect that somewhere in the process there is something going on to cause significant pressure variations. Without being able to actually view the OP's entire process we are blind and just speculating in the dark.</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 845771, member: 11717"] I don't think that's it. In loading and shooting the 300 RUM I have not seen any more than maybe 1 gr difference in case capacity between once fired and virgin brass. I have also had good luck with low density loads in that chambering, 92-93%. Also 1 full gr diff in powder is equivalent to maybe 30-40 fps of velocity, not 80. This is a puzzling situation and I suspect that somewhere in the process there is something going on to cause significant pressure variations. Without being able to actually view the OP's entire process we are blind and just speculating in the dark. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
diff in ES between virgin brass and once fired brass
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