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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
My Brain hurts....
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<blockquote data-quote="Trickymissfit" data-source="post: 442372" data-attributes="member: 25383"><p>one thing you can do with a factory barrel is to hand lap the tight spots. Lay a strip of masking tape ontop of the barrel, and then mark all the tight spots in the barrel (do leave the one at the muzzel alone!). Nothing can be done to the loose spots, so don't loose any sleep there. Now you'll need a very ridgid cleaning rod (I like Proshot), and a VERY tight patch soaked in 800 grit lapping compound. In the tight spots, stroke the patch five to eight times (just in that area). Now clean the barrel, and run a clean patch with a very light coating of oil on it to see how it feels. You may have to do this a couple times (I've had to do a couple Remington barrels a half dozen times in the past). You want the muzzel to be tighter than the rest of the barrel, so you pretty much are stuck with that end result.</p><p> </p><p>Bill Calfee has written several papers on how to select barrels and lap them, and everyone of them is worth the read. Funny thing is that 50% of the gunsmiths laughed at him, but none of them have built winning international target rifles on a regular basis. I highly recommend reading his book! As it's a wealth of information on everything from barrels to triggers. Bill is mostly known for his rimfire rifles, but he does do a center fire on occassion, and readilly shares all his data banks with the masses.</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 442372, member: 25383"] one thing you can do with a factory barrel is to hand lap the tight spots. Lay a strip of masking tape ontop of the barrel, and then mark all the tight spots in the barrel (do leave the one at the muzzel alone!). Nothing can be done to the loose spots, so don't loose any sleep there. Now you'll need a very ridgid cleaning rod (I like Proshot), and a VERY tight patch soaked in 800 grit lapping compound. In the tight spots, stroke the patch five to eight times (just in that area). Now clean the barrel, and run a clean patch with a very light coating of oil on it to see how it feels. You may have to do this a couple times (I've had to do a couple Remington barrels a half dozen times in the past). You want the muzzel to be tighter than the rest of the barrel, so you pretty much are stuck with that end result. Bill Calfee has written several papers on how to select barrels and lap them, and everyone of them is worth the read. Funny thing is that 50% of the gunsmiths laughed at him, but none of them have built winning international target rifles on a regular basis. I highly recommend reading his book! As it's a wealth of information on everything from barrels to triggers. Bill is mostly known for his rimfire rifles, but he does do a center fire on occassion, and readilly shares all his data banks with the masses. gary [/QUOTE]
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