308 sub sonic loads

I am wanting to load some sub sonic loads to use in my buddies suppressed 308 when we pig hunt. He has bought factory sub loads, but I figure I can reload them for cheaper than we can buy them. Issue is finding load data on them. I dont have my certain bullets in mind at the moment, and will base my bullet choice off whatever load data I can find.



Anyone have a source for some, or have your own that you care to share?