Well, that was super educational but little to do with the question at hand. Unless you can explain how the firing pin has more force than the slide going into battery.
As for my "junk" Lee FCD, Hawkl, untold thousands of 9mm and 45 acp loads - yes, successful - have not been a problem here for my use. And that FCD did not contribute to my verification of your earlier post. Sized = longer. Mouth expanded slightly = back to starting length, more or less. That was all. Interesting, but of no practical consequence for run of the mill range rounds.
Were I competing in Bullseye, I might care enough to toss my "junk", but that ain't my bag. Now, rifle loads...they get more respect from me.
