That is referred to as upland choking...it sounds cool but not very effective turkey or duck hunting.....for about 10 years I fall turkey hunted and occasionally duck hunted with vintage SxSs.....I wanted equal choke in each barrel.
Turkeys and upland bird hunting aren't too similar....
If your first shot is say 30 to 35 yards and you miss or God forbid wound a turkey and need a second shot the open choke is not going to be of much use unless the turkey runs towards you.
