Just to put this one to bed......I tried some judicious fine grit sandpaper but chickened out quickly so I tried another idea. I removed the stock. I have the metal tape here that is used on furnace duct work so I cut four pieces the same size as the bedding blocks. This stuff is very thin so I put two pieces on the front left and two on the right rear and it cammed right into a proper position. Now I have a free floating barrel centered in the channel. Now for some range work.