what wrong with using wolf ammo?

Both the steel case and the laquer.
Brass cases expand and then rebound back to their approximate starting size when fired...steel likes to swell and stay at least partially expanded.  This can leed to extraction problems and,in a worst case scenario, the potential for galling into the steel of your chamber.  The steel case is also extremely hard on your extractor...both because of the extra force required to extarct and the steel on steel contact for parts designed for steel on brass.  The laquer goes somewhere when the round is fired.  In many instances, it accumulates in your chamber.  It also vaporizes and goes down your bore, where at least some of it also, still in apor form gets into your gas system, which eventually gets it to your key, rings, etc...as well as a build up in your gas tube, the transfer point inthe bbl and FSH, etc...
Before the Wolf Brigade jumps in, yes...many of you have had good results with it, so far.  We also have numerous steel-cased horror stories which, to be respectful to the ammo makers and individual shooters, we don't share in detail but can be attributed to the above conditions and other problems.
Steve/RRA