I tried it last year and patterned my gun with both. I also followed their recommendations and used a choke with the Hevi-shot that is approved for steel shot. I used 3.5 inch #5 with my regular tru-glo turkey choke. I only patterned out to 40 yards (I don't feel comfortable past that range) and up to that point the lead shot with the turkey choke put more pellets in the kill Zone. The Hevi-shot is supposed to carry more energy but I had no way to measure that so I stuck with my traditional lead load.