Doc, you have made an excellent point on this thread. I can't tell you how many times I have had a shooter ask me to check their gun because it is not hitting targets, a lot of time there is shooter error. But a lot of times they have never put the gun on paper and have no idea where it is hitting, plus they are buying factory ammo and keep changing manufacturers because of availability or price. A gun has to be put on paper and grouped periodically and anytime loads are changed.
Plus as you said, shooting small groups at speed on paper at 20 yards, equates to hits on steel at closer ranges.