So what we have determined now is that the shooter has the capability to shoot better than the gun initially did with factory ammo. This has been proven by the sub-inch groups it is capable of producing with hand-crafted ammo tailored to that gun. Basically it boils down to the fact that the shooter was, indeed, capable of shooting better than the rifle would group with the factory ammo.
When shooting from a benchrest, testing the gun/load, I agree. But shooting from a benchrest and shooting from field positions are two different theings when it comes to evaluating how well a person can shoot. This of course has nothing to do with the accuracy, or lack thereof, attributable to the rifle/cartridge combination.....
But of course, the more accurate we can make the rifle/cartridge combination, the morewe reduce one of the variables that adversely affects our ability to place a bullet where we want it.