I've got a areo precision self built 308 that I think I might have headspace or other problems with , the parts are areo upper ,lower ,wilson combat super sniper 20" barrel, toolcraft BCG aero buffer tube ,spring and buffer all rifle length A2 type. The gun cycles ok ejects 3-4 o'clock, but all ammo including factory 4 differt types show some signs of over pressure ,flattened primers primers with slight lips around the firing pin strike and what I consider excessive soot or carbon around the mouth and shoulders of the fired brass, and the recoil seems excessive for 308 although I don't have another 308 to compare it to .I was going to buy a field gage, but after reading the literature on the midway site I'm not sure that would do any good , I'll load som pics of fired brass but the soot or carbon has worn off from carrying around in my pocket , these brass are factory AAC 150 gr blk tip at 2700ish fps.anyone have some thoughts on this , the accuracy is less than stellar also barley moa .