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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
5R rifling any thing Better?????
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<blockquote data-quote="quigley257" data-source="post: 2347743" data-attributes="member: 84442"><p>Another aspect of the rifling question is land to groove ratios. There are some industry caliber standards for land to groove ratios that just haven't changed over the years that don't make sense with modern bullets and twist rates. I have seen huge velocity differences between two 6mm barrels that were exactly the same bore diameter, but cut with different land to groove ratios. They both shot well but had very different velocities with the same load.</p></blockquote><p></p>
[QUOTE="quigley257, post: 2347743, member: 84442"] Another aspect of the rifling question is land to groove ratios. There are some industry caliber standards for land to groove ratios that just haven't changed over the years that don't make sense with modern bullets and twist rates. I have seen huge velocity differences between two 6mm barrels that were exactly the same bore diameter, but cut with different land to groove ratios. They both shot well but had very different velocities with the same load. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
5R rifling any thing Better?????
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