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Tennessee Gun Owners Forums
Reloading
7mm PRC Optimal powder charge help... update... I give up!!!!
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<blockquote data-quote="megalomaniac" data-source="post: 5859690" data-attributes="member: 2805"><p>So back to the range with fixed powder charge of 67.5g Re25.</p><p></p><p>Started 20thousandths off jam, brought my press with me to incrementally adjust depths in 0.006in increments.</p><p></p><p>Seems like it really liked a decent jump... a little node at 2.636 base to ogive... but velocities settled down and groups tightened up a a base to ogive of 2.608 (0.056 off lands).</p><p></p><p>ES settled down there as well.</p><p></p><p>And pressure signs (faint ejector marks at 20 thousands) disappeared as I seated deeper </p><p></p><p>Looks like I found my load for this bullet. Disappointed it's only 2810fps in a 7PRC, but that's all I can ask it to do.</p><p></p><p>When I want some more self flagellation, I'll work up a load for the 190g Hornady aluminum tipped match bullets.</p><p></p><p>(Groups were at 175 yards today)</p></blockquote><p></p>
[QUOTE="megalomaniac, post: 5859690, member: 2805"] So back to the range with fixed powder charge of 67.5g Re25. Started 20thousandths off jam, brought my press with me to incrementally adjust depths in 0.006in increments. Seems like it really liked a decent jump... a little node at 2.636 base to ogive... but velocities settled down and groups tightened up a a base to ogive of 2.608 (0.056 off lands). ES settled down there as well. And pressure signs (faint ejector marks at 20 thousands) disappeared as I seated deeper Looks like I found my load for this bullet. Disappointed it's only 2810fps in a 7PRC, but that's all I can ask it to do. When I want some more self flagellation, I'll work up a load for the 190g Hornady aluminum tipped match bullets. (Groups were at 175 yards today) [/QUOTE]
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Tennessee Gun Owners Forums
Reloading
7mm PRC Optimal powder charge help... update... I give up!!!!
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