Hornady data is extremity anemic and you can't duplicate milsurp loads with it or hornadys own garand loads for that matter...so yeah if all you want to do is shoot rocks in your backyard with light charges use hornady data. If you have a worn gas system it may not cycle reliably however.
Hornady basically did nothing other than reduce already good garand loads by a few grains and called it "garand" loads.
Why are you grabbing max charges and loading them instead of working up? THAT is bad advice right there. There is also zero reason to not use 220s if you want. The garand can safely shoot heavy bullets all day long. In fact they cycle no differently than other garand safe ammo.
If your rifle is properly greased and you have a good oprod spring you can shoot pretty much anything you want.... See Thompsons book of the garand for confirmation on that.