No, when a reloaders removes metal from the top of the shell holder he reduces the deck height of the shell holder. Decreasing the deck height of the shell holder increases the presses ability to overcome the cases ability to resist sizing. I could say "think about it" but Redding does not make shell holders for sizing cases for short chambers. I size cases for short chambers because; when I start cutting a chamber I want to know the length of the chamber from the shoulder of chamber to the bolt face. I have never found it necessary to grind the top of the shell holder or bottom of the die.
Again' I have a set of Redding Competition shell holders for magnum cases. I have never used a shell holder from the set. The set cost me $5.00, If I needed a shell holder with additional deck height it would require more than .010". I have one chamber that requires an additional .014" because the length of the chamber from the shoulder to the bolt face is .002" longer than a field reject length chamber.
F. Guffey