No need to over complicate, or stress. Contrary to what some would here want you to believe it is all pretty simple.
Contrary to what some would here want you to believe
I hope I am in the group that wants the OP to know some reloaders are full if it. The deck height of the shell holder is .125", that added to the part where I insist many reloaders are driven to the curb by tappers; when the die is "backed 'WAY' off" like 2 turns of .071+" there is no way to center the case in the die.
I have shell holders that fit the case like a hand-me-down shirt, it fits where it touches; if the die is backed off 2 turns or way-off the case can only touch on one side or not touch at all.
Again, I have loose fitting shell holders, loose fitting shell holders are my favorite; a lose fitting shell holder has more utility. And then? I have good fitting shell holders. The loose and tight shell holders serve a purpose and then there is the reloader with shop skills, he looks for utility.
A builder of wildcat rifles ask for help, seems he build a number of rifles that required expensive ammo. He wanted help forming cases; the first thing he ask for was 'the other #4 RCBS shell holder'. I knew the belted cases he was attempting to form had been overloaded and the cases heads had shortened from the cup above the web to the case head and the case heads had increased in diameter! Because the case would not fit the 'normal' #4 shell holder (typing slower) because the case had been hammered and the shell holder was a loose fitting shell holder.
Back to a good fitting shell holder, when I size fired cases and find the case head has expanded I know I overdid it. There is no reason to check the primers for signs of pressure. And it is not written anywhere the shell holder is designed to check for case head expansion. It is not written (or typed) anywhere the reloader should have a small gasket cutting ball peen hammer for such emergencies.
F. Guffey