I have'nt used wolf but after the last box of Magtech I used, It will be my last. I did'nt have any FTE but that was the nastiest stuff I've ever put through a barrel. after a couple of the rounds I even had to fan the smoke away with my hand to see down range to fire the next round. The weapon was filthy after only a few shots. I don't remember the grain but it was 38 Special round nose I picked up at the range.