22lr is cheap, but really cheap 22lr is going to be useless for long range. There is a huge difference in accuracy between federal bulk and minimags or automatch for instance, and even more with real match type ammo. As with most calibers, the most accurate is not the most powerful, so it kind of works against itself in that regard as far as distance is concerned. 22lr has a ton of super accurate match ammo available, but it is all standard velocity and since it is slow moving shooting really long range will make it more susceptible to wind. 22 magnum is much better in that regard, but I don't think I've ever seen a 22WMR labeled "match". So to sum up, I think out to 100yds or so you'd have better accuracy with 22lr match ammo, much beyond that I think 22 mag will give better overall accuracy if there is any wind to deal with. Just the way I see it YMMV.