Can't tell you about those two propellants.......but 44.5gns Vit N160, Rem 9 1/2 primer, & 95gn Nosler BT would easily produce 1/8" MOA @ 100yds from my .243 Stutzen. Cartridge OAL was 2.490" measured with a comparator.
I use .243 Hornady IB`s in 87gr in my Pro hunter II. Powder is H380 x 42 Gr = ( in my rifle ) 3054 FPS / 1972 Ft-LB. Very flat load. Accurate, sub 0.75" - in my rifle, and a load unchanged for a long time... It is very reliable in all weather conditions. No fliers, unexpected changes in performance etc...
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