My Lymans 49th shows 168 gr HPBT with 4064 at 45 grains (2551 fps) to 50 grains (2816 fps) max load. It states garand users should load at one or two grains below max. Have loaded some nosler and sierra at 48 grains using 168 and have not had good groupings. Guess I better chrono and back off the load a bit. The greek ammo patterns great at 100 yards.
Or if you load 223 as well, I've found that IMR 4895 works well for my AR and M1A
Totally not what the OP was asking, but just a reference for anyone loading both cartridges.