If he only fires his own reloads . That would meen that chamber has never seen a steel case . If that is indeed the case and he only fired a few rounds to test , carbon build up in the chamber was never the problem . Its always nice to exclude thing as being the problem .
As for build up on the bolt inside the carrier with so few rounds thru it ( hum )thats a real head scratcher for me .
( QUOTE ) However, on the back side of the bolt (not the bcg), on the rounded/sloped part just behind the two c-rings where there's often a good amount of caked carbon on well used bolts, there was a solid deposit of fouling and copper
It seems impossible for this to happen with the normal opperation of the gun . The only thing I can think of is when he put the BCG together some fouling and copper got trapped insinde the carrier when inserting the bolt, and that does not even sound right
. I don't know maybe he had a dirty work area or something
Has anybody else ever seen fouling and copper insinde there BCG ? I would love to here that story and how it got in there .