I have always heard that Brown Bear or Silver Bear was better than Wolf. I have also, heard to stay away from Wolf at all cost. In my M-16, I was having trouble with the Wolf ammo but RRA shoots it with no problem at all. I am tempted to get some for my AR and SKS.
Once again, I'll post the article about shooting Wolf in an AR-15:http://www.theboxotruth.com/docs/edu18.htm