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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: 595601" data-attributes="member: 1521"><p>I've used it to help with heavily fouling factory barrels, and to break-in aftermarket barrels. I also dress up the lands with Tubbs TMS every ~300rnds.</p><p>No problems so far.</p><p></p><p>I don't believe use of all bullets in a kit, on one barrel, was ever intended. I use a few of each grit. That's it. Brake-in in 10rnds.</p><p>JBs could never do the same thing as firelapping. There's just nothing in common really. JB is for cleaning out carbon.</p><p>Firelapping is not cleaning. It's knocking off of machined edges(from chambering) and drilling high spots down the bore. I like to think it also contributes to a slight bore taper, ensuring tightest at the muzzle. This I believe is why barrels often shoot a little better after treatment. Can't prove it, but there is no other reason I can think of for this result.</p><p></p><p>Also, many believe firelapping is polishing, it is not. Polishing a bore increases fouling.</p><p>Least fouling bores are lapped at a specific grit.</p><p>You wanna mess up a barrel? Use Flitz or JB 'bore polish'. This will cause crazy copper fouling, until the bore is re-lapped properly, which by then may be detrimental.</p><p>I learned this easy enough(ruining a really good barrel).</p><p></p><p>Tubb's works. It's safe.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 595601, member: 1521"] I've used it to help with heavily fouling factory barrels, and to break-in aftermarket barrels. I also dress up the lands with Tubbs TMS every ~300rnds. No problems so far. I don't believe use of all bullets in a kit, on one barrel, was ever intended. I use a few of each grit. That's it. Brake-in in 10rnds. JBs could never do the same thing as firelapping. There's just nothing in common really. JB is for cleaning out carbon. Firelapping is not cleaning. It's knocking off of machined edges(from chambering) and drilling high spots down the bore. I like to think it also contributes to a slight bore taper, ensuring tightest at the muzzle. This I believe is why barrels often shoot a little better after treatment. Can't prove it, but there is no other reason I can think of for this result. Also, many believe firelapping is polishing, it is not. Polishing a bore increases fouling. Least fouling bores are lapped at a specific grit. You wanna mess up a barrel? Use Flitz or JB 'bore polish'. This will cause crazy copper fouling, until the bore is re-lapped properly, which by then may be detrimental. I learned this easy enough(ruining a really good barrel). Tubb's works. It's safe. [/QUOTE]
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Tubb Final Finish
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