being an overbore cartridge it's going to be louder than a less overbore cartridge. you can kind of side step this with faster than usual powders and heavier bullets. ES/SD could become an issue as you'll end up with less than a full case of powder. also from my playing with short barrels the faster powders yield more velocity which is contrary to what most may say. in my case I got higher velocity with 8208xbr vs varget with a 18" .308

I would start with something like H4895 and a 90+gr bullet.