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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What Barrel Length and Twist for a 270WSM Build
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<blockquote data-quote="Full Curl" data-source="post: 2058586" data-attributes="member: 47602"><p>Thanks for all the good replies.</p><p></p><p>I checked out Berger's Twist Rate Calculator and looks like anywhere from a 8:1 to 10:1 would work for a 140gr to 150gr bullet. But when I go to the 170gr VLD it looks like I want a 8.5:1 minimum. Do the barrel guys even make a 8.5:1 or are you limited to 8:1 or 9:1?</p><p></p><p>If I went with a 8:1 over the 9:1 what would I be giving up with the 140s and 150s? Anything? Or in other words, why would I not want to go with a 8:1 since it'll also handle the 170s?</p></blockquote><p></p>
[QUOTE="Full Curl, post: 2058586, member: 47602"] Thanks for all the good replies. I checked out Berger’s Twist Rate Calculator and looks like anywhere from a 8:1 to 10:1 would work for a 140gr to 150gr bullet. But when I go to the 170gr VLD it looks like I want a 8.5:1 minimum. Do the barrel guys even make a 8.5:1 or are you limited to 8:1 or 9:1? If I went with a 8:1 over the 9:1 what would I be giving up with the 140s and 150s? Anything? Or in other words, why would I not want to go with a 8:1 since it'll also handle the 170s? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What Barrel Length and Twist for a 270WSM Build
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