I dont have experience with your gun but maybe I can be of some assistance. I would also try federal premium 5,6 and Winchester HV 5,6. There are some local gun stores/hunting stores around here that sell a grab bag of shells to try and find the best load for your gun. If you can ask your gun dealer/ sports shop owner if he would be interested in starting something like that (the worst thing he can say is no). I dont know my gun and the chokes I have tried like the winchester hv #6's