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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.25 cal 131g .330G7 bullet from Blackjack Bullets
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<blockquote data-quote="Longtooth32" data-source="post: 1702268" data-attributes="member: 89326"><p>That 1-7 twist for a 257 Wby may be too fast for the 3400 to 3500fps that you may be getting out of your cartridge. I think Blackjack has recommended twists for fps for their bullets. I think you are closer to 1-8 with the speeds of your cartridge. Are you going for a 26" or 28" barrel?</p></blockquote><p></p>
[QUOTE="Longtooth32, post: 1702268, member: 89326"] That 1-7 twist for a 257 Wby may be too fast for the 3400 to 3500fps that you may be getting out of your cartridge. I think Blackjack has recommended twists for fps for their bullets. I think you are closer to 1-8 with the speeds of your cartridge. Are you going for a 26" or 28" barrel? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.25 cal 131g .330G7 bullet from Blackjack Bullets
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