I think we are talking different issues. My "tie-in" was not to an accuracy test, but in reference (or so I thought) to barrel-break in, which in my opinion, is nonsense.
As to the accuracy protocol, I cannot say I've ever shot TEN shots for an accuracy test for t reasons specified. For load development, if I get consistent accuracy with say three or four independent three shot groups (using identical but fresh targets for each group)and realistic velocities through a chrono, then the rifle and load have satisfied my parameters for what I expect out of a hunting rifle. And if and when I decide to take a rifle on a hunt, depending on the animal and distances, I will take it out to two hundred and all the way out to 370 yards, which is the limit of my place. That said, I'm sure someone (mathman) will chime in to tell me there is a difference between shooting ten shots at one target or three, three shot groups at three different targets..
All you need to do is try it a few times.
