I've seen that guy. I think he's shooting some kind of special shells. Boss maybe??I dont have a 28, but the way i look at it is that load is flying plenty fast. You just have a smaller amount of shot to deal with. If it patterns ok, itll kill them. Im definitely not opposed to shooting the 28. Theres a dude on youtube making long kill shots with a 28 (at least thats the claim).
That was my original thought, but then 2nd guessed myself.Low brass high brass is really not a thing with modern shot shells.