Its all in the definition of the number of shots that constitute a group.
IMO a group consists of no less than 5 shots. Preferably 10 shots.
Inasmuch as I am mainly interested in placement of a single cold bore shot, I shoot at least 1 shot per day, some times more than one day apart, for 5 shots.
Thus I am a happy shooter if I can consistently beat MOA @ 500 yds and beyond.
When I go busting LR rocks its the first shot at the first rock that counts. Usually elevation is spot on. If windage is off more than 1/2 moa I'm a sorry weatherman.
This reasoning only counts when not shooting on my home range. I have the wind pretty much nailed there. It's out in the wild where things get discouraging at times.