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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Difference Between Button/Cut Rifling?
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<blockquote data-quote="Mikecr" data-source="post: 348665" data-attributes="member: 1521"><p>Tight lipped? Or Clueless?</p><p>I queried many top button barrelmakers in the past about this, and none, not one, accounted for stress/bore changes as part of their process. They also did not actually measure their finished bores(other than a relative swipe with an air gauge). Do they contour before lapping, or after? Well to many it made no difference.</p><p>And then there was the standard "and my barrels are winning" diversion..</p><p>The only exception is LW. They have the capability to do anything done with barrels, with the best steels. </p><p>But what do we want?</p><p></p><p>The flaw to mob rules is that it truly accomplishes nothing. Top barrelmakers spit out straight(bull) blanks, and point blank BR shooters finish them as short, straight, and stiff. But this is not what the rest of the world uses. We use longer barrels for larger capacity cartridges. We contour for a stock fit & weight that is carried in the field.</p><p>And we're doing this with button barrels made as though used for PB BR group shooting.</p><p>They were not made to produce ACCURACY at all(much less cold bore accuracy).</p><p>Cut barrels on the other hand, atleast minimize bore changes due to stress in rifling and contouring. Will this make a difference? NOT FOR GROUP SHOOTING.. But who cares about group shooting?</p><p></p><p>Anyway, there is not a barrel maker who actually knows what will produce accuracy, and none could predict a screamer from fence post beyond flagging an obvious flaw..</p><p>The mob hasn't chanted for change. So we end up with 50 barrel makers merely sharing the take.</p><p>If any stand out in your mind as better than another, you should prove it,, as nobody ever has.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 348665, member: 1521"] Tight lipped? Or Clueless? I queried many top button barrelmakers in the past about this, and none, not one, accounted for stress/bore changes as part of their process. They also did not actually measure their finished bores(other than a relative swipe with an air gauge). Do they contour before lapping, or after? Well to many it made no difference. And then there was the standard "and my barrels are winning" diversion.. The only exception is LW. They have the capability to do anything done with barrels, with the best steels. But what do we want? The flaw to mob rules is that it truly accomplishes nothing. Top barrelmakers spit out straight(bull) blanks, and point blank BR shooters finish them as short, straight, and stiff. But this is not what the rest of the world uses. We use longer barrels for larger capacity cartridges. We contour for a stock fit & weight that is carried in the field. And we're doing this with button barrels made as though used for PB BR group shooting. They were not made to produce ACCURACY at all(much less cold bore accuracy). Cut barrels on the other hand, atleast minimize bore changes due to stress in rifling and contouring. Will this make a difference? NOT FOR GROUP SHOOTING.. But who cares about group shooting? Anyway, there is not a barrel maker who actually knows what will produce accuracy, and none could predict a screamer from fence post beyond flagging an obvious flaw.. The mob hasn't chanted for change. So we end up with 50 barrel makers merely sharing the take. If any stand out in your mind as better than another, you should prove it,, as nobody ever has. [/QUOTE]
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Difference Between Button/Cut Rifling?
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