Quote Originally Posted by Burnin-Powder
Can't you just seat the bullet long(well in contact with the lands) to hold the case agains't the bolt face? Just wondering? No dog in this race i would just like to know. I would just like to gain some knowledge, please help.
Short Answer...... yes

There are a couple of methods of artificially creating a tight headspace.
One, as you mentioned, is seating a bullet long so it contacts the rifling holding the case tight against the bolt.

Another method would be to creating a false shoulder that would also hold the case tight against the bolt. In this particular example it would be necessary to neck up the case to a larger size. maybe a 6.5 cal. then using the 243AI sizing die neck it back down. That would create the false shoulder.