[Timothy]

Madison is correct about leaving some space between the shell holder and the bottom of the die when using carbide dies. I never really come close because I size only that portion of the brass that accomodates the bullet. Why work brass that doesn't need sized. At least I have not had any problems.
Here is what I do: Lay the bullet beside the brass on your bench and open your calipers to the desired OAL. Now slide the bullet forward or backward till the bullet and brass (laying side by side)are equal to the OAL setting on your calipers. With a fine magic marker, mark where the base of the bullet would be when seated. Now you know approximately how much of the case to resize. Take another brass and make several lines with your marker on it from case mouth to rim. When you run the case up into the die the marker will rub off where the sizing has taken place. Compare this brass with the sample you measured, go just a little further toward the rim and your in business.
Works for me!