It's actually pretty low of a charge as-is, when compared to Alliant's load data at 7.2gn MAX.
My starting load was 6.5gn, but the muzzle flash was pretty excessive. Working down a few tenths of a grain softened it up with a considerable decrease in muzzle flash.
Please make sure you're checking out the numbers first in reloading manuals before you take anyone's word for it. That being said, this load works for me
Edited "a few grains" to a few tenths of a grain. Been a long day.