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Rifles, Reloading, Optics, Equipment
Reloading
257 Weatherby with 131gr Blackjacks?
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<blockquote data-quote="cjhunts_alot" data-source="post: 1903530" data-attributes="member: 92711"><p>I have a 1:7 twist McGowan and I used load data for the Sierra 117 spbt as a starting point. Everything seemed to line up pretty well, and the velocities were very close to the same. I eventually settled on using 7977</p></blockquote><p></p>
[QUOTE="cjhunts_alot, post: 1903530, member: 92711"] I have a 1:7 twist McGowan and I used load data for the Sierra 117 spbt as a starting point. Everything seemed to line up pretty well, and the velocities were very close to the same. I eventually settled on using 7977 [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
257 Weatherby with 131gr Blackjacks?
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