My advise is to go shoot it and work up a load for your gun, What works great for another might not for you and your gun?
I have shot MANY Bullets in this weight range through my .50 Cals, If it were me I would start at 70-80 Grains of powder, I would also use a .54 Cal (Oversize) 1/8” Wool felt over powder wad, Triple 7 is a HOT Burning powder, You want to Protect the Bullet base as that is what actually steers the Bullet.