I received my rifle back from C Sharps they put a new Krieger 45-70 Barrel on, It was a blank they chambered and turned it to fit my sharps .
I don't know how or why but there is a stain on the blueing, if I oil the barrel down it appears to go away a few days later it will show back up.
It looks like a dirty plastic bag or rag was wrapped around the barrel when in the blueing stage and I think its on the surface.
I was told to take some fourott steel wool and some Hoppe's 9, it should take the stain off.
They test fired the barrel I can see the copper it runs the full length of the rifling, I have a bore scope-should i clean it out? I shoot and compete with this rifle every month. I have a bottle of Sweets I shoot cast 16/1 with GOEX
Should I clean the barrel with soap and water before using the sweets I know you're not supposed to mix chemicals it has Hoppe's number nine in the barrel now.