Now then, absolute accuracy is a combination of several ingredients. The rifle action is certainly one, but only one. The barrel is another, but still only one. When the barrel and the action are properly mated, it is then necessary to fit the assembly into a stock system, and that is a third item. If action, barrel, and bedding are all perfect, there is yet another item missing, which may be the most important of all, and that is ammunition.
Ammunition is the largest single element in rifle accuracy.
No rifle sitting in the rack can produce premium accuracy. Unless it is fed premium ammunition the combination will not work, and premium ammunition is not all that easy to come by. What is offered over the counter for sale may or may not measure up. When I took delivery the company representative implored me by the bones of Saint Cuthbert never to shoot that piece except with the very finest of premium ammunition, either factory or hand-loaded. Subsequently in the Philippines I ran across an SSG which the owner was willing to discard, since in his words it would not stay on a copy of Time at 50 paces.