I might be missing something.... but if you want to get your bullets closest to the lands... I satisfy that for MY needs ( your's may be different)... by making a dummy round.
barely seat a bullet into an empty unprimed case... put it in the chamber and then ran it home with the bolt...
that precisely shows where the bullet is touching the lands.
then I adjust my die down to contact the bullet from the dummy round.. lift the ram and turn the die down ever so slightly....
Hillbilly mechanics but it seems to work pretty well for my needs...its like fitting a shoe to your foot, or hand to a glove.
