Tex, I have posted about this several times. I use a DMT diamond hone it is slightly narrower than the raceway, 4.33" x .875" x .1875" to be exact. I own the Blue, Red, Green that is from Coarse to extra fine. Unlike some other brands these are extremely flat.

They say use water but I use a penetrating oil(Kroil). I put some on the raceway and the hone. The top I concentrate on the area the cocking pin rolls on and on the bottom I push down through the ejection port sliding to and fro. It is amazing how rough the tooling marks are on these surfaces. Once your done the bolt glides like a custom. I will lone mine to you if you want. The Blue and red should do it for you.