Many ThanksRimfire.....grease on the barrel threads, nothing on the shoulder.
I personally do not use anti-seize.
JPatt
My other concern was not pinching anything between the shoulder and face. Anti-seize being high in solids could cause that condition if too much was slathered on. I tend to use too much out of fear of galling. I always use too much loctite on stuff too but that’s a whole different issue.I’ve always used stainless anti-seize on barrel threads. I used anti-seize for years when a machinery manufacturer in their infinite wisdom used aluminum gear-boxes with steel lube fill plugs. Works great for me.