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Question by dbell. Uploaded on August 14, 2011
In a nutshell, barrel lapping is a finishing process of the interior of the barrel. Whether it is done by hand or machine, the desired end result is the same. Perhaps an old time gunsmith who still revels in the art and craftmanship will take more time and care to achieve the utmost mirror shine and smoothness of the barrel. A mirror smooth and uniform barrel to exacting tolerances will increase accuracy due to lower friction losses, better spin applied to the bullet, less interior blemishes to increase barrel fouling. I hope this helps answer your question.
lyndo, is correct. Hand lapping takes imperfections out of the barrel.
Yes, both are right. But if you hand lap a barrel it should be done on a barrel that has not been chambered yet. Lapping can and will open the throat of the chamber. You may gain very little in the process,but you lose more. If you are building a gun from scratch then lapping becomes some what of a benefit. You lap the barrel, and then chamber it. Other wise your gains are very minimal
Very interesting. I suppose "hand" lapped would be done by "hand" rather than by a machine, which would be a "machine lapped" barrel.
Kinda what I thought but wasn't real sure.
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