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Long Range Hunting & Shooting
Cut rifling vs button rifling
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<blockquote data-quote="Canadian Bushman" data-source="post: 1045933" data-attributes="member: 41122"><p>I have a few opinions on this one. </p><p></p><p>First both barrel types need extensive stress relieving because regardless of the rifling type they are drilled and contoured which induces what i believe to be where the majority of stress comes from. Also why i believe a straight contour barrel offers many advantages along with rigidity but thats for another day. </p><p></p><p>Any type of metal removal shaping or forming adds stress. Period. </p><p>The more extensive the machining the more extensive the stress. I have scraped hundreds if not thousands of parts due to stress relieving of parts from machining operations. Any physical change to metal will add stress.</p><p></p><p>I believe cut rifled barrels offer 1 or 2 distinct advantages. </p><p></p><p>1. Precise twist rates. </p><p> Although the difference in precision between the two types is small, it does exist. </p><p> Rifling tools work on the end of a small rod. The cut rifling tool endures less force and deflects less than a button. Hundreds of tiny cuts takes a long time but are also more consistent. </p><p></p><p>2. Variability of tooling. </p><p> Without mimicking kirby's post too much, cut rifling tooling is easier to make/modify and can result in a larger variety of options in a larger variety of twist to match more shooters preferences. </p><p>A barrel maker can also stock hundreds of buttons but this adds cost and time, and in such a competitive market most are not willing to do so. </p><p></p><p>That being said the most accurate rifle i have wears a button rifled lilja.</p></blockquote><p></p>
[QUOTE="Canadian Bushman, post: 1045933, member: 41122"] I have a few opinions on this one. First both barrel types need extensive stress relieving because regardless of the rifling type they are drilled and contoured which induces what i believe to be where the majority of stress comes from. Also why i believe a straight contour barrel offers many advantages along with rigidity but thats for another day. Any type of metal removal shaping or forming adds stress. Period. The more extensive the machining the more extensive the stress. I have scraped hundreds if not thousands of parts due to stress relieving of parts from machining operations. Any physical change to metal will add stress. I believe cut rifled barrels offer 1 or 2 distinct advantages. 1. Precise twist rates. Although the difference in precision between the two types is small, it does exist. Rifling tools work on the end of a small rod. The cut rifling tool endures less force and deflects less than a button. Hundreds of tiny cuts takes a long time but are also more consistent. 2. Variability of tooling. Without mimicking kirby's post too much, cut rifling tooling is easier to make/modify and can result in a larger variety of options in a larger variety of twist to match more shooters preferences. A barrel maker can also stock hundreds of buttons but this adds cost and time, and in such a competitive market most are not willing to do so. That being said the most accurate rifle i have wears a button rifled lilja. [/QUOTE]
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Cut rifling vs button rifling
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