Cowboybebop
Member
Several of my rifles / shotguns have this look to the chambers - all of the ones with this look are chrome-lined.
What is this? Is it rust?
It looks like something that could have been used to thread the barrel into the receiver, like a brazing or some kind of heat mark. It will not come off scratching with a dental pick. The posted pic is of a Winchester SXP Shotgun (with chromed bore). Also noticed it recently on a brand new SCAR at Cabela's.
What's the deal?
What is this? Is it rust?
It looks like something that could have been used to thread the barrel into the receiver, like a brazing or some kind of heat mark. It will not come off scratching with a dental pick. The posted pic is of a Winchester SXP Shotgun (with chromed bore). Also noticed it recently on a brand new SCAR at Cabela's.
What's the deal?
