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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Mike Rock barrels???
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<blockquote data-quote="LazyD" data-source="post: 184110" data-attributes="member: 9933"><p>Ian M is right on the money about what the 5R is. Obermeyer was the original maker of 5R barrels. Here is a quote from his website about the 5R.</p><p> </p><p><span style="font-family: 'Times New Roman'"><strong><em>"What does it mean when a barrel is said to be a "5R"?</em></strong></span></p><p><span style="font-family: 'Times New Roman'"><strong><em></em></strong></span></p><p><span style="font-family: 'Times New Roman'"><strong><em></em></strong></span><span style="font-family: 'Trebuchet MS'"><em>5R is the form of rifling I developed for use in most target barrels and in many sporting barrels. </em></span></p><p><span style="font-family: 'Trebuchet MS'"><em>These barrels have 5 grooves, and the lands have angular sides. I have observed that bullet jackets </em></span></p><p><span style="font-family: 'Trebuchet MS'"><em>will deform such that they remain closer to the R-form lands than they will to the sharp-edged </em></span></p><p><span style="font-family: 'Trebuchet MS'"><em>lands present in conventional-style rifling. This reduces powder fouling at the corners of the </em></span></p><p><span style="font-family: 'Trebuchet MS'"><em>grooves. The angled form of the lands also helps to reduce jacket failures in quick-twist barrels."</em></span></p><p> </p><p><span style="font-family: 'Trebuchet MS'">Rock's making some awesome barrels, and if I have my facts right I believe Mike Rock use to work for Obermeyer.</span></p></blockquote><p></p>
[QUOTE="LazyD, post: 184110, member: 9933"] Ian M is right on the money about what the 5R is. Obermeyer was the original maker of 5R barrels. Here is a quote from his website about the 5R. [FONT=Times New Roman][B][I]"What does it mean when a barrel is said to be a "5R"? [/I][/B][/FONT][FONT=Trebuchet MS][I]5R is the form of rifling I developed for use in most target barrels and in many sporting barrels. These barrels have 5 grooves, and the lands have angular sides. I have observed that bullet jackets will deform such that they remain closer to the R-form lands than they will to the sharp-edged lands present in conventional-style rifling. This reduces powder fouling at the corners of the grooves. The angled form of the lands also helps to reduce jacket failures in quick-twist barrels."[/I][/FONT] [FONT=Trebuchet MS]Rock's making some awesome barrels, and if I have my facts right I believe Mike Rock use to work for Obermeyer.[/FONT] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Mike Rock barrels???
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