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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Will a 10" twist work in a .338 Norma?
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<blockquote data-quote="DAVETOOLEY" data-source="post: 642042" data-attributes="member: 46733"><p>1-10 will work fine, a 1-11 works also. I've heard of but never witnessed a 1-12 will work. The 9.3 came about to allow shooting subsonic ammo. One other thing Sg, gyroscopic stability, increases as velocity decreases because the velocity decays at a much higher rate than the rotational spin rate. The suggestion of using the impact velocity is wrong because of the different rates of decay.</p><p> </p><p>Dave</p></blockquote><p></p>
[QUOTE="DAVETOOLEY, post: 642042, member: 46733"] 1-10 will work fine, a 1-11 works also. I've heard of but never witnessed a 1-12 will work. The 9.3 came about to allow shooting subsonic ammo. One other thing Sg, gyroscopic stability, increases as velocity decreases because the velocity decays at a much higher rate than the rotational spin rate. The suggestion of using the impact velocity is wrong because of the different rates of decay. Dave [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Will a 10" twist work in a .338 Norma?
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