Right now I am shooting a Rem 700 action that has been trued. I have a Bartlien barrel that has an outside diameter of 1 1/8". I shoot a 22-250 and each time I go to the range I shoot 8 groups at 100yds with each group being 5 shots. I average for the 8 groups between .35 and .45. In the past 2 years I have shot over 40 sub 1/4" groups. I anneal after each firing and shoot .002 off the lands with .0025 neck tension. Right now I am using VV N150 powder with Ammerman bullets. I use a Sinclair front rest and bags in the rear. I also use a Sightron scope. I never shoot a warm barrel, I always let it cool between groups. The bench that I shoot off is rock solid. It is a lot of money for a new action and I know there is no sure thing but I would like opinions if a new action will shrink my groups or just look pretty. Thanks