No gouge marks that I can see from bolt lugs and position is right where one would expect with a overspeed BCG flipping it out hard onto the brass deflector
(I'm going to thow a wild guess and hazard that the brass piles somewhere between 12:30 and 2 , and out about 6 feet prone or up to 10 feet standing)
If it were too slow the damage would be lower on the case as it got snotted by the bolt face coming back in before the empty was thrown fully clear.
T'would also cause next round feed issues.
Could be completely wrong and they happened to come out of a loose bulk pack box that way instead.
Don't want to hi-jack jeepyj's thread but my issue seems to be with one mag only. I just picked up this Colt Gov' Carb pre ban and am new to AR's Didn't have much time so I only put a few rounds through it. other mags seemed OK That brass was out of one of the 20 rnd Colt mags. The gun is supposedly all stock. I lubed the hell out of the bolt but the one mag still jams the round as it cycles. Figured I would work it out over the winter when I have a bit more free time.