02-13-2014, 09:33 AM
If you think about it the bolt was made and turned on a lathe. It is more true than anything you will do to it. I would leave it alone and let the surfaces wear together. The bolt has play to begin with since it is a AR-15 and semi-auto setup so the ammo can feed. On a bolt gum, you might see a difference but that is usually done with some precise measuring and a person who has done it a few times and practice makes perfection..
