To the original poster I hesitate to send you to another forum but you would be interested in a long series of posts by Jala on RF central where he shoots all 50 rounds of a box at 100 yds and another box at 200 yards off of a bench.
His work with a few other guys additions show just how challenging it is to get 22lr ammo that has consistency due to many factors. Almost every brand is represented in the testing.
Learned a lot looking over the different “Groups” that were represented in that very extensive collection of shooting work.
My 22’s are better fed after a bit of scratching around to buy some of the ammo choices that held up better in those shooting groups posted.
