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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel Lapping vs. Tubbs Final Finish
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<blockquote data-quote="BountyHunter" data-source="post: 96408" data-attributes="member: 12"><p>A chambered and crowned barrel cannot be hand lapped without enlarging the diameter of the crown end which will destroy accuracy.</p><p></p><p>The best lappers with the barrel mftrs cannot do it, so no way an individual or local smith is going to be able to do it. </p><p></p><p>That is why all the mftrs AFTER lapping normally make a cut or mark on the end of the muzzle end of a new blank to tell you where to cut it off to get rid of that enlarged part.</p><p></p><p>Now Tubbs Final Finish works extremely well normally. However, I never fire all 10 of the shots with the largest grit normally. I normally fire 5 and then 5 of the subsequent sizes. After that I retest groups and cleaning. If I have to then I repeat, but never had to do it yet on at least half dozen guns.</p><p></p><p>BH</p></blockquote><p></p>
[QUOTE="BountyHunter, post: 96408, member: 12"] A chambered and crowned barrel cannot be hand lapped without enlarging the diameter of the crown end which will destroy accuracy. The best lappers with the barrel mftrs cannot do it, so no way an individual or local smith is going to be able to do it. That is why all the mftrs AFTER lapping normally make a cut or mark on the end of the muzzle end of a new blank to tell you where to cut it off to get rid of that enlarged part. Now Tubbs Final Finish works extremely well normally. However, I never fire all 10 of the shots with the largest grit normally. I normally fire 5 and then 5 of the subsequent sizes. After that I retest groups and cleaning. If I have to then I repeat, but never had to do it yet on at least half dozen guns. BH [/QUOTE]
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Barrel Lapping vs. Tubbs Final Finish
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