odd, because my Winchester 7.62x39 almost always outshoots my Wolf. usually 1/2 the group size. in my experience, Wolf seems to vary in powder charge, etc. One round will eject 5 ft, the next dribbles out of the port. hits all over the place (and I'm a pretty acceptable shot). none of these problems with the Winchester. I actually keep a few (expensive) boxes of Winchester around for sighting in, then switch to Wolf to plink. there's no greater waste of ammo than trying to sight in while chasing groups around the paper...
5.45 Wolf seemed more consistent, but I had nothing to compare it to (I don't shoot corrosive, and there's no commercially produced 5.45)