Wow.....did you leak down test before dis assembling. Not say you had an air leak, but always a good idea. Have you taken your pistols out, and what do the rings look like? Seems like something bounced around, and around in there knocking the shit out of it. If that's detonation that's the most spread out detonation I've seen. Following, and ready to learn something. I'm sure far more experienced guys will chime in. Sent from my SM-S820L using Tapatalk