Wait a minute, the instruction given by neck sizer reloaders instruct/advise/recommend firing once to form then neck size the case 5 times AND then full length size to start over, I have responded with "I can not do that, a case that has been fired 6 times has been fired 6 times, how is it possible to start over"?
I have said bullet hold can be measured. How is neck tension measured? Those with pin gages say in thousands, this thread is about felt resistance to bullet seating, just a guess but I do not believe a reloader with pin gages can measure bullet hold or an increase in bullet seating effort.
Another one I have not sorted out is the "A case is not full grown until it has been fired 4+ time", I am the big fan of cutting down on all that case travel, I determine the length of the chamber first then form, after I fire, my cases are once fired, again, I form the case first.
F. Guffey