Because I shoot Garands as well as other 30-06 rifles, I small base everything.
When you start reloading for your Garand you need a cartridge head space gage.
A wilson is pictured.
I highly recommend you use a small base die, with a decent case lube. Like Imperial Sizing wax or RCBS water soluble. It is just about impossible to small base size a case using a spray on lube.
Size your cases to gage minimum. Prime all cases by hand and verify that no primers are above the case head.
I also recommend using the least sensitive primers you can find, I use CCI #34's.
The reasons for this is to minimize the chance of having a slamfire. Or worse, an out of battery slamfire.
You absolutely do not want any delay to bolt closure in a Garand. All the time, as that bolt is pushing a round into the chamber, that firing pin is tapping the heck out of the primer. If you don’t believe it, just look at the pock mark on the primer of a chambered round. Reducing the case to factory dimensions, or close to it, with a small base die, and sizing to gage minimum, reduces the chances of a slamfire.
Lyman made small base dies that reduced the case diameter more than any other brand. Unfortunately Lyman stopped making those dies. My RCBS small base die is an excellent die.