Put my barrel on my upper and followed all the steps the measuring headspace. Bought a set of gauges, go, no go, and they both closed on the gauges with just thumb pressure. I measured the gauges with a micrometer and cant find any difference in them. Sorry, don't have the brand in front of me. Faxon barrel, dpms modeled upper and lower from AMT 80%. Wilson BCG. Barrel nut torqued down.
Possible I have a bad gauge set?
I know, I know, you guys need a shitload more info..................