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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel fluting post build affect accuracy?
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<blockquote data-quote="chris matthews" data-source="post: 70047" data-attributes="member: 66"><p>I'll throw in my two cents worth as I have done a considerable number of barrels before and after....</p><p></p><p>Yes, fluting does alter bore dimensions. The bore opens up a bit in diameter in the fluted section. You can feel this with a tight patch or lead lap after fluting.</p><p></p><p>Here is when a couple of barrel makers do their fluting:</p><p></p><p>Rock: After drilling, before reaming and rifling.</p><p></p><p>Broughton: After buttoning, but then it is stressed relieved (by heat, not cryo) and then lapped.</p><p></p><p>Schneider: about the same as Broughton.</p><p></p><p>All of them recommend re-lapping the bore if you flute after build up.</p><p></p><p>I have fluted several barrels after rifling-but before chambering and they took longer to break in and settle in before they started shooting well.</p><p></p><p>There is a bunch of smoke and mirrors BS out there about fluting- what it does do and what it doesn't do- you make your own decision there, but if you want to flute a barrel that is already chambered, have it lapped at least to help maintain accuracy.</p></blockquote><p></p>
[QUOTE="chris matthews, post: 70047, member: 66"] I'll throw in my two cents worth as I have done a considerable number of barrels before and after.... Yes, fluting does alter bore dimensions. The bore opens up a bit in diameter in the fluted section. You can feel this with a tight patch or lead lap after fluting. Here is when a couple of barrel makers do their fluting: Rock: After drilling, before reaming and rifling. Broughton: After buttoning, but then it is stressed relieved (by heat, not cryo) and then lapped. Schneider: about the same as Broughton. All of them recommend re-lapping the bore if you flute after build up. I have fluted several barrels after rifling-but before chambering and they took longer to break in and settle in before they started shooting well. There is a bunch of smoke and mirrors BS out there about fluting- what it does do and what it doesn't do- you make your own decision there, but if you want to flute a barrel that is already chambered, have it lapped at least to help maintain accuracy. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Barrel fluting post build affect accuracy?
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