Thread: Sorting 22lr

After reading this thread, I decided I would see if sorting my cci subs would make a blind bit of difference.

A few minutes on the lathe had a sizing block made, and the dial indicator was put to good use (0.01mm graduations).

I started by sorting 50 rounds. There were some real outsiders which were left aside for fouling shots. The rest were broken into groups sorted by 0.01mm increments in rim thickness.

I was pleasantly surprised by the results. Best 5 shot group closed right up to 3.25mm @ 25m. The other sorted groups fared well, but it appears my rifle has a liking for one rim thickness a lot more than the others.

As a side note, I found out why I was having trouble ejecting certain unfired rounds. These were the rounds with the thickest rims, and pushing the projectile into the lands far enough to make it stick. I jotted down the thickness this starts, and will not use those rounds for anything other than fouling shots, or lobbing into a 10/22 which is not as fussy.


Yep - 5 rounds in that hole.