You're on the right track. But it was IMR 4895.You can hand load for factory spec ammo for that Garand. You have to avoid some of the faster burning powders that would create hard slamming of the operating rod and possibly bend it.
I am going from memory, but I think the military powder for the 30-06 Garand was H4895 powder. You could use that powder or one that is very close in burning rate to it and load to the velocity of the military ammo. Do not hot rod your loads as you may damage the rifle.
RELH