If the surface is rough then it could affect the trajectory if a ball touches the side. On a typical barrel tip, it won't under most conditions. If you break paint in the barrel, it will be very difficult to clean and it will affect every shot after, until you wash it out. A squeegie won't even help if the surface is physically rough.
Lapping will help remove minor abbrasions. The brake hone or some other honing device is what you need to remove the outer layer of oxide that is damaged. You can get super fine grits in the hones and you can finish the job with a lapping compound. It will be a raw aluminum so it will be softer, but its the barrel tip so it won't be subject to continuous abrasion. If you want to protect it, have it reannodized. You don't even have to do the outer surface of the barrel. The annodize will grow on any clean aluminum surface. If the only pure surface is the inside of the barrel, then thats the only surface that will annodize. If you are not worried about dies (its the inside of the barrel, who cares) then do it yourself. All you need is some battery acid and a power supply. Check the forums here for others that have done it.
Lapping will help remove minor abbrasions. The brake hone or some other honing device is what you need to remove the outer layer of oxide that is damaged. You can get super fine grits in the hones and you can finish the job with a lapping compound. It will be a raw aluminum so it will be softer, but its the barrel tip so it won't be subject to continuous abrasion. If you want to protect it, have it reannodized. You don't even have to do the outer surface of the barrel. The annodize will grow on any clean aluminum surface. If the only pure surface is the inside of the barrel, then thats the only surface that will annodize. If you are not worried about dies (its the inside of the barrel, who cares) then do it yourself. All you need is some battery acid and a power supply. Check the forums here for others that have done it.
Stock BKO (so far)
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