It's not so much trying to seat on the lands just checking throat depth before firing to keep an eye on erosion. On my two mod 12 vlp'S in 22-250 and 243 and also a mod 10 in 243 I have no problem touching the lands and still haveing adequate seat depth. My 22-250 VLP prefers a .010 jump and the 243 VLP likes .020 to .025 jump and I would think .250 is a considerable jump.