As mentioned in Marshall's book and on posts in this website it is recommended to use Bullseye powder for lapping a .444. My question is this, I have Reloader 7, why can't I use a reduced , i.e. 5 to 7 grains of it , rather than purchase a pound of Bullseye. I also have on hand IMR 4831 H4350 Win. 760. Thanks-Karl