Just came from the Crown Point In. gun show wanted to add a RRA star ambi-safety and winter guard on RRA 5.56 lower.Also took my spent brass 1300 5.56 mixed mostly lake city,1200 9mm mixed,and 340 .308 mixed mostly mil surpl.The guy [who is a RRA dealer and works on them don't know if I'd call him a smith] looked at the .308 cases. Said they were beat up because of to much lube causeing maybe the rifle to over gas.Guy walking by heard this and said "thought your suppose to run them wet" RRA rick said "not RRA".So I'll put gunscrbber in gas tube and blow it out with computer air in a can,wipe it down and see what happens.I usaully just use CLP for lube last 3 cleanings have put oil on bolt rings under chargeing handel and under carrier so I will eliminate that an stay with light lube and see what happens.Also mentioned primers flat on spent cases,not sure if it was bullpoopy to give me less for brass or what <dontknow>.In the end got ambi-safety and winter guard and put in with $5.00 back to my pocket.Returned with Lar-8 lower and he polished the 2-stage trigger and man what a difference noticeably lighter.