Originally Posted by tx_shooter
The only problem with waiting till you have maxed your pressure finding your node is that when you start changing your seating depth you start changing your pressure too. I had to redo a load when I adjusted my seating depth for some 168s. It seems the depth of the bullet will throw your pressures high real easy. So I find the bullets preferred seating depth - do some load testing - tune a node - retest the depth up and down a little... then shoot the heck out of it.
This idea is cogent. We should do what works. For me, if I begin with the bullet seated at the lands, my pressures are usually at their highest, as they should be. This leaves me with one direction to tune, and that is to seat deeper, where consequently, the pressures tend to drop. If in fact I can get a better load with a bullet seated deeper and pressure drops, I can always add more powder to see if the load can be tuned even more.
My problem is I tend to get lazy once my loads are in the .4 range and under at 100 yards.