Weighing out my powder

[Potashminer]

Also if you load to the center of an OCW node, one kernel + or - won’t ruin your day.

THIS!! OCW (Optimal Charge Weight) results in .5 or even 1.0 variation in load charge making virtually no difference in point of impact, IF you have found the node!! (bullet is exiting the muzzle as the shock wave within the barrel material is back at the chamber). Well described on the Internet - Dan Newberry seems to be major proponent of it.