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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Re-barreling one of my .308's - Twist rate?
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<blockquote data-quote="86alaskan" data-source="post: 1385689" data-attributes="member: 75933"><p>IF it were me, I'd go with the 1-8" for the heavies. It won't hurt you with the lighter supersonic rounds, but will really help out with subs. There are some really great heavy sub rounds out there, and by going with a slower twist you'd be limiting yourself out of those rounds. </p><p></p><p>As far as consistency, you should definitely try a Lee Factory crimp die and give those subs a good firm crimp. I found with my 300BO that the crimp made the ES way lower. I think it's due to the fact that the powder has something to act against in a fairly uniform fashion. When you just use neck tension, the bullet may start to move unpredictably at those lower pressures in a sub. I've found that factory crimp die to improve consistency in a bunch of my rifle and handgun loads.</p></blockquote><p></p>
[QUOTE="86alaskan, post: 1385689, member: 75933"] IF it were me, I'd go with the 1-8" for the heavies. It won't hurt you with the lighter supersonic rounds, but will really help out with subs. There are some really great heavy sub rounds out there, and by going with a slower twist you'd be limiting yourself out of those rounds. As far as consistency, you should definitely try a Lee Factory crimp die and give those subs a good firm crimp. I found with my 300BO that the crimp made the ES way lower. I think it's due to the fact that the powder has something to act against in a fairly uniform fashion. When you just use neck tension, the bullet may start to move unpredictably at those lower pressures in a sub. I've found that factory crimp die to improve consistency in a bunch of my rifle and handgun loads. [/QUOTE]
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Re-barreling one of my .308's - Twist rate?
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