If you will sort the ammo by rim thickness, which is what the .22 round headspaces on, you will get tighter groups. You can do this while watching TV with the wife. Imagine increasing accuracy while scoring points for quality time! It does work. I am shooting
winchester Dynapoints (which has very good quality control for cheap ammo) and getting excellent results.
I use an old 223 casing, slip the 22 round in it, and take a measurement. Then I sort the ammo based on an average of what the measurement is. You will get the hang of it. If you choose, you can buy a commercial device made for this. It attaches on the caliper to give you a reading, but it is easier for me just to use the spent casing as a guide.