I had wolff ammo work in my NPM carbine for a little while. But then it broke 4 extractors in very short order. It deffinately wasn't my gun being dirty either, I keep it very clean, but this ammo was probably sticking in the chamber from the polymer coating it has. I won't use it again, I don't care how expensive brass cased carbine ammo gets cause that's what I'm using from now on.
Also like campperrykid said, it is dirty, weak, slow and has poor accuracy...at least in my carbine.
Obviously if you have LC .30 Carbine it's alot better than Wolf, but am not sure where you'd find it if it isn't already in your closet. Either S&B or Aguila is better than the Russian steel-cased stuff. Of course, more expensive too.