Well I don't know about any green tip Wolf ammo. But I bought a box of the 55 grn FMJ stuff, in the grey steel case. Out of 20 rounds thru my 223 Ulta Varm, only 14 hit a 8-10 paper target at 100 yds. The group, if you could call it that, was about 7 inches. I would not waste my barrel time or money on that crap again. It is JUNK. How's that, is that clear enough.
Let me edit this, it was the 62 grn JUNK, not the 55 grn JUNK.