I shoot tons of .22 from 50 yards out to 300 yards. Since I only shoot for accuracy, I only shoot sub sonic ammunition and I use one of four, depending on the purpose.
For casual plinking, I shoot CCI Standard Velocity. It isn't the greatest ammunition, but better than any bulk ammo in terms of consistency and usually shoots minute of golf ball at 100. I get it in the paper boxes at just over $2.50 a box of 50.
For a local rimfire match that I shoot every week, a match rule is that everyone has to shoot Wolf Match Target, so I shoot up a bunch of this stuff for practice. It's definitely a step up from CCI Standard Velocity, but a far cry from true Match ammo, throwing an odd unexplained flier now and then. Today, after the match, I stayed around and shot five ARA cards, consisting of 125 individual targets. Of the 125 shots taken, 7 of them landed in the 50 ring. Knowing the way I shoot, I'd say that three or four of them were probably because I slapped the trigger or failed to properly follow through, but the other three or four were most likely due to the ammunition.
For no holds barred matches where bragging rights are seriously on the line, I shoot Eley Black Box. I order mine from Killough Shooting Supply. You can order test boxes, consisting of several different lots. When I find a lot good for a particular application, I buy as much as I can afford. At $13 a box, I try to plan this so that I can spread my purchases out across my needs.
For 50 yard shooting, I look for something in the 1060 velocity range. For 100 yard shooting, I look for something at 1080 or better. For beyond 100 yards, I try to get the fastest I can.