I think its a problem either way. If its actual flame cutting, the metal used in the revolver is poor. If its lead? Well IMO the barrel cylinder gap is too great allowing the lead to get up there.
I have never owned one of these or a Heritage Arms or a FIE, and when I read stuff like this, I will stick to Colt and Ruger for a SA 22. A revolver with a problem like that should not have left the factory.
Winchester 73, the TFL user that won the west