Sure, that works, but it doesn't negate the fact that how I do it works well, for me. Before the sled, I would shoot multiple three round groups to zero my rifle, if the three round group was tight, I would adjust the scope to the POI, if not, I would shoot another. It would usually take about half a box to zero my rifle, now with the sled I adjust my scope after each round, and usually the third is just to verify the second, and a fourth round off the sled to confirm the second and third round. I don't compete, so take what I say with a grain of salt, but I like my three round groups to be under 1", a ragged hole is not necessary, but I do have a couple rifles that are capable of that. I also shoot the third and fourth round with a cold barrel, which is what I will be shooting while hunting. I would guess that is not a thing for competition, since there is no cool off period.