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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Polygonal Rifling?
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<blockquote data-quote="Deleted member 46119" data-source="post: 1148796"><p>One thing to consider: the after market barrel makers serve and are involved in bench rest/high accuracy shooting. If the polygonal rifling worked from a speed and accuracy standpoint then barrels would be available in every flavor you could imagine.</p><p></p><p>As I understand it from others, polygonal rifling works with solid lead bullets, however copper/copper jacketed don't obturate to the bore well in rifles. </p><p></p><p>I have a pistol with a polygonal barrel and it is supposed to be the opposite. Jacketed not soft lead. Go figure? No way to get reliable data from the pistol. Never tested accuracy differences. </p><p></p><p>Maybe it has to do with bullet diameters. Solid lead rifle bullets are often .0005 to .002 over jacketed so there is plenty of material to close/seal (obturate) to the bore.</p></blockquote><p></p>
[QUOTE="Deleted member 46119, post: 1148796"] One thing to consider: the after market barrel makers serve and are involved in bench rest/high accuracy shooting. If the polygonal rifling worked from a speed and accuracy standpoint then barrels would be available in every flavor you could imagine. As I understand it from others, polygonal rifling works with solid lead bullets, however copper/copper jacketed don't obturate to the bore well in rifles. I have a pistol with a polygonal barrel and it is supposed to be the opposite. Jacketed not soft lead. Go figure? No way to get reliable data from the pistol. Never tested accuracy differences. Maybe it has to do with bullet diameters. Solid lead rifle bullets are often .0005 to .002 over jacketed so there is plenty of material to close/seal (obturate) to the bore. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Polygonal Rifling?
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