Hevi-shot does not require as tight a choke as we're used to using in our turkey guns. I patterned it last year in my Remington full choke and got better results than Federal Premiums and Winchesters with a Hastings turkey choke. At 30 yards, I had about the same count in the kill zone with 2-3/4" Hevi-Shot as I did with 3-1/2" Feds & Winchesters.