Lapping is not a machining process it is a polishing process. Very minor imperfections in ring finishing and machine marks can be smoothed or removed .Imperfection in receiver alignment or bases is not going to be affected much by what a polishing process does. If imperfection in receiver or base are small enough to be eliminated by lapping, they would be of no consequence to start with.
Lapping produces very little change in dimension. Lapping is more about creating a smoother uniform surface for the scope tube to be seated in.
It seems like some folks have lapping bars and ring alignment bars confused.
My 3 cents worth.
Last edited by foogle; 01/24/23. Reason: Spelling
