corey012778
On occasions it is possible to get a reddish looking looking patch from a barrel. The are a few products out there that will cause old powder residue to leach out of the pores or powder that is caught behind the riflelings to dissolve and in combination with the barrel lube will appear to be rust...
One way to get this residue out of the pores or rifleings is to clean with a boiling water bath once in awhile - especially when you plan to store the barrel for a length of time...