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Long Range Hunting & Shooting
Virgin brass vs. once fired.
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<blockquote data-quote="AZ82New" data-source="post: 2884615" data-attributes="member: 120858"><p>Hello,</p><p></p><p>I worked up a load with virgin 280 AI Petersen brass. It shot great, roughly 1/2 MOA with an ES of 6fps.</p><p></p><p>I wet tumbled the bras, annealed it, Re-sized and the exactly copied the original load…sme lot of primers, powder, bullets etc. seating depth the same. </p><p></p><p>It e fed up shooting over MOA, the velocity was 30 fps faster and the ES was in the 20's. </p><p></p><p>Oh, I also used the same expander mandrel.</p><p></p><p>What gives?</p><p></p><p>I figured I messed up annealing it. </p><p></p><p>Conversely, I worked up a load with once fired 300 WSM brass…..all the same prep…..it shoots great. All touching.</p><p></p><p>I throw the same powder charge, primer, powder etc….and I ran it through a the same die to make sure the neck tension was the same as the once fired. </p><p></p><p>It shot terribly. </p><p></p><p>Anyone else have the same experience?</p></blockquote><p></p>
[QUOTE="AZ82New, post: 2884615, member: 120858"] Hello, I worked up a load with virgin 280 AI Petersen brass. It shot great, roughly 1/2 MOA with an ES of 6fps. I wet tumbled the bras, annealed it, Re-sized and the exactly copied the original load…sme lot of primers, powder, bullets etc. seating depth the same. It e fed up shooting over MOA, the velocity was 30 fps faster and the ES was in the 20’s. Oh, I also used the same expander mandrel. What gives? I figured I messed up annealing it. Conversely, I worked up a load with once fired 300 WSM brass…..all the same prep…..it shoots great. All touching. I throw the same powder charge, primer, powder etc….and I ran it through a the same die to make sure the neck tension was the same as the once fired. It shot terribly. Anyone else have the same experience? [/QUOTE]
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Virgin brass vs. once fired.
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