Need a good load for a friend's Garand

[Charlie98]

True enough, my error, but ever so slightly slower, all three are very close to one another in almost every application. What you can do with one you can pretty much do with the other with a few minute differences given individual rifles and bullets, in my experience. The big jump is going to the 4350 range, pressure curve not optimal for M-1 or M-1As.

Agreed. I don't think IMR4064 works as well with ~150grn bullets, but that's just my experience. I think IMR4320 is a moot point... it has been discontinued; more likely, it's been replaced with one of the newer Enduron powders, like IMR4166... although that wouldn't be my first choice, either.