Why use a sabot round in a shotgun? Don't if you know your shots will be 80 yards or less. A .73 caliber slug weighing 430 grains will do the job. Beyond 80 or so yards, I've found standard slugs to be less than (what I would call) accurate. So I switched to sabots. For some reason that 325 - 400 grain . 50 bullet can give very good accuracy out to 150 yards or so - or further If you can figure the drop. Smaller & faster can be better than big & slow.
All the Hornadys I've tried didn't shoot well for me. Like their bullets out of my muzzleloader though.
Winchester Platinmum tips or Federal sabots with the Barnes bullets - now we're talking,,,,,,,,,,,,,,,,The deer I've killed with these two loads have sometimes managed 20 or 30 steps - but usually not that far.