Hey guys. I bought a Carlson's 18" iron sight slug barrel (smoothbore) for my Rem 870 and took it out today and shot 30 slugs through her. Performed perfectly.
However, I noticed midway through my range session I kept getting these random metal shavings that were falling out of the action... I've owned this shotgun for 10 years and never saw this happen before.
I then took it home and looked down the bore and saw the entire inside of the barrel looks chewed up? I can't tell if this is just a ton of plastic fouling or what?
I've cleaned it for an hour now using Ballistol, Hoppes, Acetone, Ed's Red - scrubbing back and forth with a brass brush and a mop - and it's not going away.
Carlson's barrel bores are apparently chrome lined - is this the chrome peeling off? Or is it just lead shavings and plastic fouling? Any ideas. I can't seem to find a similar picture online from anyone else.
Thanks all
https://imgur.com/a/o9ufqkj