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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
No. of Lands and Polygonal barrels?
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<blockquote data-quote="Kobra" data-source="post: 23346" data-attributes="member: 476"><p>In my continuing long range education I stumbled onto Pac-Nor barrels website. First I noted the vast number of wildcats and secondly I note the vast array of twist rates/land combinations.</p><p></p><p>How do you select a non-norm land number? In some calibers, with available twist and land combos you would be looking at 5 to +15 choices. Is it all just trial and error or is there some formula? I realize as bullet weight/length goes up you generally want twist rate to speed up but how do you determine no. of lands? Preference?</p><p></p><p>Then there was even polygonal choices. From what I have read, polygonals namely Mike Rock barrels, are unbelievable shooters but I don't notice anyone on here really speaking of them.</p><p></p><p>Thanks for the comments.</p></blockquote><p></p>
[QUOTE="Kobra, post: 23346, member: 476"] In my continuing long range education I stumbled onto Pac-Nor barrels website. First I noted the vast number of wildcats and secondly I note the vast array of twist rates/land combinations. How do you select a non-norm land number? In some calibers, with available twist and land combos you would be looking at 5 to +15 choices. Is it all just trial and error or is there some formula? I realize as bullet weight/length goes up you generally want twist rate to speed up but how do you determine no. of lands? Preference? Then there was even polygonal choices. From what I have read, polygonals namely Mike Rock barrels, are unbelievable shooters but I don't notice anyone on here really speaking of them. Thanks for the comments. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
No. of Lands and Polygonal barrels?
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