#1. Use steel shot always. #2. what length of shell will your gun take?? If it's 3 or 3 1/2'"s, go out and buy 3" #4's, #2's, and a box of BB's. Pattern test your gun with a modified and full choke, using all of the different boxes you jsut bought. Whichever throws the most symetrical pattern in a 30" circle at 40 yards, use it and remember it.