I wonder why you are insisting on shortening the case between the shoulder and case head .002". When the die is adjusted down to contact + an additional 1/4 turn the die is adjusted to full length size the case "BACK TO MINIMUM LENGTH". Backing the die off the shell holder or adjusting the die to the shell holder will not give you the proverbial .002".
A reloader should know the length of the chamber from the shoulder of the chamber to the bolt face. A reloader should be able to adjust dies to off set the length of the chamber.
Redding competition shell holders are all on the + side, I form cases for short chambers, I cut short chambers, when I size cases for short chambers I use a feeler gage to raise the case up off the deck of the shell holder. there are times it is necessary to trim the feeler gages to fit.
And, I check to make sure the shell holder makes it to the bottom of the die. When the case has more resistance to sizing than the press can overcome the press flexes/bows. It does not cam over unless the press is a cam over press.
All of my Rock Chucker presses lock up and go into a bind when the toggle hits the linkage. The binding of the linkage prevent them from camming over.
And I said I use my Rock Chucker presses on my Piggy Back 11 loaders. I always mention the Piggy Back loaders, Rock Chucker presses and cam over in the same sentence. There is something a reloader can not do with a Piggy Back loader. It is auto advance, it is designed to rotate/advance in one direction only.
F. Guffey
