.308 as a general rule works with many powders. Varget was purpose built by hodgdon, with assistance from vihtavuori to be a purpose built 308 match powder.
It does a great job of it too. It's consistent, not temperature sensitive, and produces good velocity.
Ultimately, its what works best for you in your gun. Don't be afraid to experiment with powders. See if you can find an advantage to one over another.
VIGILIA PRETIUM LIBERTATIS
"The price of liberty is vigilance"
America is at an awkward stage. It's too late to work within the system, but too early to shoot the bastards.