I loaded up the Sierra 70 grain bullets for the 243. Seating them .050 off the lands only gives .1515" in the case. I know someone said the old rule about the depth being as deep as the caliber is not necessary but that is quite a little ways off. I would like to seat it to .020 but I am pretty sure that would be too little bullet in the neck. Any advice appreciated.

This measurement may be off some since I did it with the unreliable digital calipers but I measured several times and averaged them. I simply have to invest in some micrometers to be comfortable with my measurements.