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Rifles, Reloading, Optics, Equipment
Reloading
Velocity difference between new brass and fired brass
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<blockquote data-quote="Gwine" data-source="post: 1824824" data-attributes="member: 65644"><p>On my last new brass I did a little experiment while fire forming. 7mm08 starline brass. After finding pressure and a decent node I loaded 30 doing nothing more than running an expander through the neck for uniform necks. (same as I did to the ladder loads) I full length sized the next 50 brass before loading. With the same load I was 25fps slower. Once all brass was fire formed, the same load gave 8fps faster than the virgin. </p><p>All with same powder charge. </p><p>-fire formed-2638</p><p>-virgin new unsized-2630</p><p>-new full length sized-2605</p><p>I did adjust most loads to be at the node 2630.</p><p>Aprox 41g+/- IMR 4064, 162a-max, cci lrp, all jammed .010</p></blockquote><p></p>
[QUOTE="Gwine, post: 1824824, member: 65644"] On my last new brass I did a little experiment while fire forming. 7mm08 starline brass. After finding pressure and a decent node I loaded 30 doing nothing more than running an expander through the neck for uniform necks. (same as I did to the ladder loads) I full length sized the next 50 brass before loading. With the same load I was 25fps slower. Once all brass was fire formed, the same load gave 8fps faster than the virgin. All with same powder charge. -fire formed-2638 -virgin new unsized-2630 -new full length sized-2605 I did adjust most loads to be at the node 2630. Aprox 41g+/- IMR 4064, 162a-max, cci lrp, all jammed .010 [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Velocity difference between new brass and fired brass
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