I have a 721 Rem with a 27" Lilja NBRSA barrel in 300 Ultra. It has a H S Precision stock, Nightforce 5.5x22 scope and talley mounts. No matter what I shoot in it, I can only shoot about 11/4 MOA. I have skinned the bedding,lapped the bolt and can not improve it. The gunsmith replaced the first barrel for the same reason. I suspect that the action may not be square with the barrel. WHAT DO YOU GUYS THINK?