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.
Those tests are fascinating. The standard deviation in the velocity of a lot of rimfire ammo is HUGE. Add in a little wind, and you come to realize that what a lot of people say they do at 200 yards with a rimfire is BS.
