Gunsmithing Breech rung question Badger m2013

mjh30

Gunny Sergeant
Full Member
Minuteman
Aug 10, 2008
2,157
193
58
Edmonds Washington
It been a while since I changed the barrel on my Badger. Noticed some build up on the breech ring, carbon? Pics to explain the second pic the buildup started to come off.

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