I myself find this hard to believe too. I think we have nearly the same gun. I have the new 835 thumbhole with a 20 inch barrel. I am not getting near the results that you are. I have used the win. supreme 5 shot and fed flightcontrols, remington and a few other shells and even bought a new choke and the best i can get is anywhere from 30 to 35 in vitals at 30yds 12 to 18 at 40yds and just a few at 50yds so id say 45 is about my max.