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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
barrel twist
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<blockquote data-quote="ZERMEL" data-source="post: 35892" data-attributes="member: 2774"><p>Ruger#1.</p><p>Ther Greenhill formular is not all that reliable, it overstabilizes by a considerable margin. You should use a constant of about 180 rather than the 150. I would use a 1-12" twist because of the higher velocity which the Greenhill formula does not address.</p><p>The faster the bullet the less twist you need.</p></blockquote><p></p>
[QUOTE="ZERMEL, post: 35892, member: 2774"] Ruger#1. Ther Greenhill formular is not all that reliable, it overstabilizes by a considerable margin. You should use a constant of about 180 rather than the 150. I would use a 1-12" twist because of the higher velocity which the Greenhill formula does not address. The faster the bullet the less twist you need. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
barrel twist
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