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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Why Is My .280 AI so slow?
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<blockquote data-quote="Snowfighter" data-source="post: 662075" data-attributes="member: 49142"><p>I appreciate the following. </p><p>I'm shooting a 26" kreiger barrel. </p><p>56.5 gr imr 7828 ssc. </p><p>162 a max. </p><p>I loaded close to max in the book. Backed out a few primers. </p><p>Realized my head spacing was wrong. Started fire forming my brass and only neck sizing. Tuned them down about a grain and a half. Still wouldn't group. Turned them down more till I got the clover leaf I was looking for. </p><p>The cronigraph data was gathered from 3 different cronographs. </p><p>I think the head spacing played part in the high pressure signs. Might try some warmer loads. I'm not sure what to do. If I go to a lighter bullet I will loose bc. Less range.</p></blockquote><p></p>
[QUOTE="Snowfighter, post: 662075, member: 49142"] I appreciate the following. I'm shooting a 26" kreiger barrel. 56.5 gr imr 7828 ssc. 162 a max. I loaded close to max in the book. Backed out a few primers. Realized my head spacing was wrong. Started fire forming my brass and only neck sizing. Tuned them down about a grain and a half. Still wouldn't group. Turned them down more till I got the clover leaf I was looking for. The cronigraph data was gathered from 3 different cronographs. I think the head spacing played part in the high pressure signs. Might try some warmer loads. I'm not sure what to do. If I go to a lighter bullet I will loose bc. Less range. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Why Is My .280 AI so slow?
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