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.280 ai
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<blockquote data-quote="7magcreedmoor" data-source="post: 1017271" data-attributes="member: 48559"><p>My 7 rem mag ran 3030 (validated) using the same bullet and powder (70 gr vs 63.5), same length barrel, same grooves and twist from PacNor. I did not expect to get quite this much speed from the Ackley, but there it is. My chrono has always been a little optimistic, and it is showing an average of 3024, which I expect will prove out to somewhere between 3000 and 3015 when I shoot the trajectory validation data at 200, 600, and 900 yards. I sold the magnum to get away from the recoil, and built the Ackley expecting to get somewhat less velocity in exchange for a fair recoil reduction. I have seen no pressure signs with this load. To say I am pleased with how it all turned out is an understatement...</p></blockquote><p></p>
[QUOTE="7magcreedmoor, post: 1017271, member: 48559"] My 7 rem mag ran 3030 (validated) using the same bullet and powder (70 gr vs 63.5), same length barrel, same grooves and twist from PacNor. I did not expect to get quite this much speed from the Ackley, but there it is. My chrono has always been a little optimistic, and it is showing an average of 3024, which I expect will prove out to somewhere between 3000 and 3015 when I shoot the trajectory validation data at 200, 600, and 900 yards. I sold the magnum to get away from the recoil, and built the Ackley expecting to get somewhat less velocity in exchange for a fair recoil reduction. I have seen no pressure signs with this load. To say I am pleased with how it all turned out is an understatement... [/QUOTE]
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