That gun should be firing whatever primers that you decide to put in it. Do not know about the Wolf but the inlines are prone to having weak mainsprings. Lost some good shots on game because of misfires with my Mag. Hunter. Got to talking with other folks. Three other guys had the same problem with their CVA inlines. They all raised smoke with CVA and got new springs and stuff. I stretched the mainspring and it works OK now but I will never trust that gun again. Other guys have killed deer and hogs with it but I will not use it.