The AA2230-C is a Military pull powder used in there gas op rifles and it is a good powder for the M1 Or M1-A and so is the AA 2230.
The 4895 powder is a Military powder that was designed for the gas op rifles, in my opinion it is the best for the M1 Grand and the M1-A.
Slow burning powder should be avoided for the M1 and M1-A it will spring the op rod and you will get cycled shots some times enough to empty a M 1 clip.
Powder with a burning rate on both sides of the AA2230-c AA2230, and 4895 should be avoided.
I won't comment on the .223, I have a SP-1 Colt but I haven't shot it or loaded enough for it to make a accurate comment on.