I looked down the barrel of my fowler with my Teslong scope and saw some oily rust. After a month of rain during the summer I found surface rust in most of my B/P gun barrels. I gave them all a good cleaning and oiling so finding rust in the fowler surprised me. It may be rust I scrubbed out of the barrel that mixed with oil and settled on the breech plug, I stored my fowler butt down.
I pulled the breech plug and found some superficial rust on the face of the plug. Looking at a Teslong picture will give you nightmares. I polished the breech plug face to a slick shine, coated the plug threads with a thick coat of high temp anti-seize and reinstalled it.
I suspect the black crud on the breech plug is a mixture of anti-seize and oil. Again, I polished the breech plug to a shiny surface, the Teslong will see a hair follicle on a gnats behind a make's things look really rough. At least the rust is gone.
I pulled the breech plug and found some superficial rust on the face of the plug. Looking at a Teslong picture will give you nightmares. I polished the breech plug face to a slick shine, coated the plug threads with a thick coat of high temp anti-seize and reinstalled it.
I suspect the black crud on the breech plug is a mixture of anti-seize and oil. Again, I polished the breech plug to a shiny surface, the Teslong will see a hair follicle on a gnats behind a make's things look really rough. At least the rust is gone.