I can't speak to the pistol caliber ammo, but I can vouch for their 5.56.
I built a beater weapon from beater parts (worn out left-overs) on a beater (cast Oly) receiver with a beater barrel (butchered shot out post-ban converted to pre-ban by wopping off the bayonet lug and threads / recrowned with a drill and set-screw mounted Smith muzzle brake).
I decided to feed it only crap and shoot it until it died (kB or otherwise. I also vowed to record all range condtions, stoppages, repairs, and shots fired.
Well, after spending 103 rounds working out all of the kinks (polished the chamber, added a new disconnector, ejector spring, extractor and extractor spring) it simply ticked away for another 2,053 rounds.
At the 2,156 round mark it was printing 4.25" groups at 100 yards. Not bad for an AR and exceptional for a Mini-14 or AK.
Needless to say, it was abused but reliable. So, I sold it through the newpaper.
What I noted about the Wolf ammo follows:
1 - Wolf ammo is dirty.
2 - Wolf ammo is cheap.
3 - Wolf ammo "MIGHT" have eaten my used and abused extractor, or the extracor may have been defective from the start. The fact that I cycled 2,053 rounds without a hitch after replacing the original used one may prove this.
4 - Wolf ammo caused me to chew through a few chamber brushes. The laquer does build up, but good maintenance helps.
and
5 - Wolf ammo isn't that accurate, but it's good plinking fodder.