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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
220 swift 12twist
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<blockquote data-quote="benchracer" data-source="post: 1302537" data-attributes="member: 22069"><p>The Hornady 68 BTHP is too long to work in a 12 twist. It is the same length as the Hornady 75 BTHP. My 12 twist 22-250 is just barely able to stabilize the 69 SMK. Your Swift may also be able to stabilize the 69 SMK, but the bc will be considerably lower because the bullet will be understabilized.</p><p></p><p>From a 12 twist, the 69 SMK will not offer any long range advantage over lighter bullets, such as the 53 VMAX or 55 SBK. If you want to reach out to 1000 with a Swift, a 9 twist and 75's will likely do the job, though an 8 twist would be a better choice.</p></blockquote><p></p>
[QUOTE="benchracer, post: 1302537, member: 22069"] The Hornady 68 BTHP is too long to work in a 12 twist. It is the same length as the Hornady 75 BTHP. My 12 twist 22-250 is just barely able to stabilize the 69 SMK. Your Swift may also be able to stabilize the 69 SMK, but the bc will be considerably lower because the bullet will be understabilized. From a 12 twist, the 69 SMK will not offer any long range advantage over lighter bullets, such as the 53 VMAX or 55 SBK. If you want to reach out to 1000 with a Swift, a 9 twist and 75's will likely do the job, though an 8 twist would be a better choice. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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220 swift 12twist
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