Some things one has to do
use a fan to keep barrel mirage at bay. Allow time for the air to stabilize. It only makes sence that if one is seeing a .224 hole after 10 shots, it's goona be ok everywhere. Don't be in a rush.
I reduced the Air Rife Benchrest target to copier paper size and use it. Shoot away from the dot but close enough so that you can easily measure for any vertica. I shoot a group in the sighter on the side of the target and if that looks promising, I shoot a line of bulls across the target. I then draw a line across the closest rings, horizontally and one can see, right away if they have anything worth buying. I have never seen ammo I tested this way to not work outside. If it is good enough I shoot a second line across to be sure. Now, I realize there are flyers in .22 rimfire ammo, It is a statistical fact but I want the best shot at having the least flyers I can get. I also realize the term flyer is debated but I consider it to be anything in the 9 ring. The good thing about America is things can be whatever we choose them to be.
Why fight the windflags and guess rather or not you can remember the condition you just saw?
Pete