The gun should tell you whether you need a turkey choke by patterning it. If you can get an even pattern and a minimum of 100 pellets in a 10” circle at 40-yds, you’re good to go. 100 pellets seems to be the sport’s standard and I use it. In addition, I would not assume one brand of shot is better than another without patterning. Some guns could be finicky with the load size and amount going down the barrel. Bottom line: Pattern your gun. Good luck to you [emoji256]