I use either a Comp n Choke XX Full in my BPS or an older Hastings .695. Both of these are deadly with any #4 I have shot through them whether it be a 2oz. or 2 1/4 oz. load. #5 pattern very well also. I have seen about 5 or 6 Brownings patterned and for the most part the Remington Premier #4 loads patterned best out of all of these guns no matter whether the regular full or a turkey choke was used.