I've had superb luck with Redding, Lee, and Hornady. I will die on the hill saying RCBS dies are garbage. GARBAGE. Two different rifle die sets neck tension was so loose after sizing you could turn the bullet in the neck after seating. I also had trouble with the pistol set in 50 ae. It didn't size the case nearly enough for bullet tension, so even after taper crimping gobs of unburnt h110 were coming out of my desert eagle.