Well my h&r pardner singleshot is a mod choke I think the 88 is too if that is the case I have used just cheap wal mart turkey thugs or Winchester supreme in no 5-6shot with ok paterns I usually can get 2 pellets in the brain and 2 in the neck/ spine at 30 yds but I don't use a rest to pattern my gun so it's probably just user error hope this helps