I loaded 168gr. TSX's with RL-22, IMR-7828, and H-1000.
I worked will all three powders until I was getting pressure signs, trying to get 3500fps, 3400fps was tops.
My rifle shoots the 200gr partision, 200gr accubond, and the 208gr A-max well under MOA but I never found a real good load with the 168gr TSX, I shot up 3 box's of the tsx's durring load workup and gave up.
I never planed on hunting with that light of a bullet out of my RUM, just playing around.