Just last week I was working on a load for my M1 Garand for the 200 yard matches. For my Garand 46.5 grs. IMR 4064 worked quite well along with Fed. 210 primers.
Semper Fi
When Sierra's 168's were first used in competition for the .30-06, 48 to 49 grains of IMR4064 was the popular load for best accuracy. Both in bolt guns as well as the Garand.