I'm a brass cased snob, but I recently nabbed a half case of Wolf Military Classic. It is completely different ammo than what we were buying 10 years ago. No more green lacquer, no more cat urine smell (ammonia), much better looking in terms of bullet & primer seating, and much more consistent/accurate that the old Wolf that so horribly stained my memories.
I'll have no qualms about feeding this stuff to my more expensive ARs. Even my Steyr AUG A3 ate the stuff on the normal gas setting, which is impressive to say the least.
I'll still always try to buy brass cased ammo when I can, but I think the folks at Tula & Ulyanovsk are starting to crank out some ammo that is friendly to everything else outside the AK envelope. The $0.40-$0.50 per round is getting old.