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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bartlein gain twist barrel
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<blockquote data-quote="Mateo" data-source="post: 1087402" data-attributes="member: 77067"><p>I have a gain twist by Ron Smith. It's a 1:16-1:8. It's for my 6.5 Sherman Shortmag. I've just broken in The barrel and am now getting ready to start load developement. I'm gonna crony speeds with a magnetospeed and compare them to others who have the 6.5 SS with their same loads. See if velocity as any change. I got this barrel for the theoretical lower initial pressure spike to help extend barrel life. I was gonna just go with a fairly light gain, but the barrel maker said he has had great success with the heavy gain twist.</p></blockquote><p></p>
[QUOTE="Mateo, post: 1087402, member: 77067"] I have a gain twist by Ron Smith. It's a 1:16-1:8. It's for my 6.5 Sherman Shortmag. I've just broken in The barrel and am now getting ready to start load developement. I'm gonna crony speeds with a magnetospeed and compare them to others who have the 6.5 SS with their same loads. See if velocity as any change. I got this barrel for the theoretical lower initial pressure spike to help extend barrel life. I was gonna just go with a fairly light gain, but the barrel maker said he has had great success with the heavy gain twist. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bartlein gain twist barrel
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