I've been chasing my tail this yr doing load development, and while I'm just about there... the one aspect of the tail chasing has me thinking/wondering. When I find a charge and seating depth that delivers,or borderline delivers the level of accuracy I need... I try to pin point it by adjusting seating depths and charge. What I've found is when I'm this close I can up the charge a tenth, and set the bullet out another 3 to 5 tenths, or drop it a tenth and seat deeper and get results that have me wondering if I'm heading the right direction. By doing this I assume I'm mimicking the pressure I need to squeeze out the best load? What should I attribute these results to the most? Is it obt,ocw, seating depths, pressure, or all of the above?