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Rifles, Reloading, Optics, Equipment
Reloading
Varmint Al's barrel break-in method
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<blockquote data-quote="QuietTexan" data-source="post: 2660386" data-attributes="member: 116181"><p>ASME calls it "surface texture" in their standard <img class="smilie smilie--emoji" loading="lazy" alt="🤓" title="Nerd face :nerd:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f913.png" data-shortname=":nerd:" /> I've dealt with in machining engines but never considered re: the inside of a bore. </p><p></p><p></p><p>Button rifled barrels would have terrible Ra or RMS numbers because of the transverse valleys in the grooves, and throats could never be measured because of the gator skin that forms pretty quickly in some cases - but barrels with both issues can still shoot fine. Would be very hard to quantify because the tools I've used wouldn't work on either of those cases. Maybe there's a better way to measure a sectioned barrel though.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2660386, member: 116181"] ASME calls it "surface texture" in their standard 🤓 I've dealt with in machining engines but never considered re: the inside of a bore. Button rifled barrels would have terrible Ra or RMS numbers because of the transverse valleys in the grooves, and throats could never be measured because of the gator skin that forms pretty quickly in some cases - but barrels with both issues can still shoot fine. Would be very hard to quantify because the tools I've used wouldn't work on either of those cases. Maybe there's a better way to measure a sectioned barrel though. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Varmint Al's barrel break-in method
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