I have two different sets of the competition shell holders, one regular and one mag. I use them mainly for rifles in the same caliber but different headspaces. Important to keep a note with the set of dies indicating which one of the shellholders goes with which rifle. Since I use a Co-Ax press for most of my rifle loading, I just make a small die adjustment. Point I was making is that I don't set my FL die to PFL until the case is snug in the chamber. After one firing the case still is loose in the chamber and not in need of PFL.
Using the competition dies requires you to set the first shellholder and then simply change a shell holder for a different headspace. Several different ideas here just pick the one you feel most comfortable using. They all work.Rick.
