I had the same problem. Go 1/4 to 1/2 turn past contact with the shellplate. You want to feel solid resistance when it cams over.
Tobnpr: I was experiencing the same thing when FL resizing .308 brass that had apparently been fired thru a MG. I found that my presses (a Dunbar 'H' and a Hollywood Senior Turret) were flexing .02" (as measured with a finger gage) and not resizing them sufficiently. I was afraid to do what you said, but may do so in the future.
My solution was to resize them twice.
I am curious as to what press you were using?
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