I agree with cayugad completely although what you also need to do is have a thick layer of over-powder wad, of about 1/2 to 3/4 of an inch. And instead of using paper wads you can use a plastic wad and put slits in the wad depending on how much you want it to spread. The longer the slits the more open your pattern. And try to keep it to medium loads because they tend to turn in the best patterns.If you shoot it at 35 to 40 yards with no slits then you end up with a great pattern, but if you shoot it any closer than that it acts like a slug and rips a huge hole in the paper and you have no pattern at all, just a bunch of lead pellets in a plastic cup. Hope this helps.

Ted