I ahd the opposite results of kodiakhuntmaster. I found the hevi-shot to out pattern the other lead shells. My buddy had problems when he tried his super tight choke with it. It seems to blow open the pattern. Hevi-shot is hard like steel and does not like to tight of a choke. The choke they make specifically for it is .675. I had great results with my pl;ain full choke in my benelli. The bird i took at 35 yards last year had five pellets in the head and beak.