[flashhole]

If your seat die engages the ogive of the bullet, not the tip of the bullet, and the diameter of the seat stem opening is smaller than the diameter of the bullet, which it has to be to engage and seat the bullet, wouldn't the spacing between the ogive and the lands be constant regardless of ogive type and ogive tolerances? Seems to me the only difference would be how much bullet tip would extend into the bore but the spacing between ogive and lands would always be the same.