I would start with the factory choke tubes and the cheapest box of turkey ammo you can find and start there. Chances are in 90 percent of guns in 90 percent of hunting situations this combo will do the trick just fine. I shoot a remington super full that came with the gun and the Winchester Supremes in #6s (which at 20 bucks a box is one of the "cheaper" loads out there). If for some reason your gun doesn't like that ammo, then I would try some of the expensive stuff. It would be a shame to buy one of these $50 boxes of ammo and find out they shoot like crap in your gun haha. I think as a general rule most shotguns are much less picky about the ammo they are fed then rifles. Good luck!