I get all the 22's I could ever use just by cleaning the bench top off when I'm at the range.
I don't hardly ever bother to bend over to pick them up.
maybe if I find some particularly large pile of them with very small firing pin dents or the like, other than that it's only clean bench top stuff.
Jon.
I do sort them by HS.
the alloy they use and the weight between brands varies some, enough I don't want to try to match up cores, and I would weight sort the finished product further,,, if they were cast bullets.
they ain't the only ones that way though.
40 S&W's also vary, but not just in weight, rem's seem to also be longer and have more case capacity than the others, Federal/CCI and Blazer are usually close-nuff, and Winchester seems to have the shortest and lightest cases.
occasionally I will run across a batch of federal cases that are closer to Winchester though.