So I will end up doing their seating depth test, but enough people have said to jam 'em, for that to be a likely sweet spot, my question now is, if I jam them, will pushing the bullet into the lands push the projectile into the case, thus changing the COAL? I have redding S dies and will be using .002 undersized neck tension, is this enough to keep the projectiles from pushing into the case when pressed to the lands/keep it from being pulled out if an unfired cartridge is extracted?