I've been experimenting with Barnes(flat and boattail base), Parker BE's, Hornady SST's and Harvester's Scorpion PT Gold(all 290 or 300 gr) the last few weeks and I use Harvester Black Crush Rib sabots for all of them in my Knights and the Redemption; unless I'm shooting the Barnes SpitFire MZ or TMZ, and then I use the Yellow Crush Rib which are designed for boattail bullets. Their red sabot is too thick to use in any of my guns. I use 110 gr of BH209 and a Federal 209A primer. All the Knights have been converted to a bare primer breech pllug. Very good accuracy on all of them. I'm interested to see how they perform on game.