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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Tubb Final Finish
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<blockquote data-quote="Mikecr" data-source="post: 649934" data-attributes="member: 1521"><p>You get more copper fouling if you use the wrong JB (Bore Bright).</p><p>And you get more copper(for the same reason) if you use Flitz.</p><p>The correct J-B (BORE CLEANING COMPOUND) doesn't 'hurt' a thing, or increase fouling.</p><p>Tubb's FF doesn't hurt a thing, or increase fouling.</p><p></p><p>Polished bores absolutely copper foul more.</p><p>The only recovery(possibly) from such an action, is re-lapping(back to custom bore finish).</p><p></p><p>And some guns won't shoot for a dozen or so shots because that's how long it takes to shoot out the oil they left in there, and re-establish dry fouling(with increased carbon by then).</p><p>Anyone can avoid this, I do, by cleaning to the metal every time, and dry prefouling, before putting the barrel back in the safe for ready use.</p><p>I can pull one out, shoot 100shts, and get no more than one blue-ish patch of copper from it.</p><p></p><p>I don't have to worry about carbon either, but I watch it. Carbon is the cancer that ultimately kills performance from our bores. Even if you shoot mild loads in a 30br, which could technically provide over 10,000 rounds of accurate barrel life, a fully formed carbon ring can take you out way earlier. Once established, you cannot remove it(cut out the cancer) without forever damaging the bore. </p><p></p><p>You can manage carbon build-up with rational/occasional use of J-B NON-EMBEDDING BORE CLEANING COMPOUND, and Tubb's TMS will still help with copper and dressing up of the lands(lapping them to your bullet shape).</p></blockquote><p></p>
[QUOTE="Mikecr, post: 649934, member: 1521"] You get more copper fouling if you use the wrong JB (Bore Bright). And you get more copper(for the same reason) if you use Flitz. The correct J-B (BORE CLEANING COMPOUND) doesn't 'hurt' a thing, or increase fouling. Tubb's FF doesn't hurt a thing, or increase fouling. Polished bores absolutely copper foul more. The only recovery(possibly) from such an action, is re-lapping(back to custom bore finish). And some guns won't shoot for a dozen or so shots because that's how long it takes to shoot out the oil they left in there, and re-establish dry fouling(with increased carbon by then). Anyone can avoid this, I do, by cleaning to the metal every time, and dry prefouling, before putting the barrel back in the safe for ready use. I can pull one out, shoot 100shts, and get no more than one blue-ish patch of copper from it. I don't have to worry about carbon either, but I watch it. Carbon is the cancer that ultimately kills performance from our bores. Even if you shoot mild loads in a 30br, which could technically provide over 10,000 rounds of accurate barrel life, a fully formed carbon ring can take you out way earlier. Once established, you cannot remove it(cut out the cancer) without forever damaging the bore. You can manage carbon build-up with rational/occasional use of J-B NON-EMBEDDING BORE CLEANING COMPOUND, and Tubb's TMS will still help with copper and dressing up of the lands(lapping them to your bullet shape). [/QUOTE]
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