I was havinga problem with my bolt being stiff to close on my reloadsand I was using a RCBS FLS die. I screwed my FLS die out 1/2 turn and my bolt closed like it should but then my casings started showing some signs of a excessive headspace issue I assume because of the extra 1/4 turn out wassetting the shouldersback a little bit too far on my brass, nothing dramatic but my primers were flatting out just a tad and I was no where near any kind of load that would develope high pressures. I change to a heavier all iron and steelpress because I was using a flimsy aluminum Lee's Challenger press to resiae my cases and I seen where it had quite a bit of shell holder slop and could actually feel the press flex a little when resizing. I adjust my FLS die the standard 1/4 turn out in the new much heavier press and my cases chamber like brand new ones at the same FLS die adjustment that made my bolt very stiffto close usingthe flimsy press.