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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Twist rate for 7WSM...
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<blockquote data-quote="Varmint Hunter" data-source="post: 21549" data-attributes="member: 313"><p>The Hornady 162gr A-Max is a very long bullet for its weight and diameter. As such, you will need a 9 twist or faster to stabilize it. According to Hornady, my 10 twist Hart barrel (7STW) will only keep this bullet stable for about 100yds before it becomes UNstable in flight.</p><p>I'd opt for the 9 twist which should be capable of handling most bullets up to 175gr. An 8 twist barrel may be good for a particularly long and heavy, special purpose bullet but I really don't see the practical use of it. <img src="http://images/icons/cool.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Varmint Hunter, post: 21549, member: 313"] The Hornady 162gr A-Max is a very long bullet for its weight and diameter. As such, you will need a 9 twist or faster to stabilize it. According to Hornady, my 10 twist Hart barrel (7STW) will only keep this bullet stable for about 100yds before it becomes UNstable in flight. I'd opt for the 9 twist which should be capable of handling most bullets up to 175gr. An 8 twist barrel may be good for a particularly long and heavy, special purpose bullet but I really don't see the practical use of it. [img]images/icons/cool.gif[/img] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Twist rate for 7WSM...
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