I normally run 44 grains of IMR 4350, with 140 grain bullets, and the load proved just as accurate with the 143 grainers.
MV is 2750 fps out of a Ruger 77, 22 inch barrel...

with 4831 SC, I'd go with 47.5 to 48 grains with it... MV should be the same range... 2750 fps...

RL 19 same charge...MV should be a little faster than 2750 fps...

H380 or H 414 ( W 760 or AA 2700, same powder) will yield faster velocity

all had great accuracy in my Ruger, 1 in 8 twist.

"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC

“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez