Ed Harris' "The Load" is 13 grains of red dot with a standard weight projectile. That requires a gas check, or a jacketed bullet. I have experimented with 160 gr cast bullets and about 7 grains of red dot. That load is also derived from Ed Harris' work, but is not from a published load manual. My Mosin loves it at up to about 50 yards (1.25 inch groups from iron sights, probably smaller if I was a better shot)