Quote Originally Posted by Pcc1421 View Post
Good question. Again I don't have headspace gauges YET to get a final measurement. But on an empty chamber and just screwed in finger tight, I measured .115" of threads showing. I guess it's just a cosmetic issue as I had the barrel cerakoted black and those stainless threads stick out like a sore thumb. But I ordered a long shank and my barrel nuts are the same from factory/aftermarket. I can upload a picture if that will help.

Thanks
Not clear on how far into the receiver you screwed the barrel??
If you screwed it in until it contacted the rim of the bolthead, you're in .125-.130 too far.

If that's what you did, it accounts for what you're seeing (and those exposed threads will disappear once you back out the barrel when headspacing)