Do what you can to clean the barrel, but if your rifle barrel is as rusted as a Russian capture Mauser I own, the only solution is a new barrel.
I soaked the German Mauser in Sweets, used JB bore paste, then steel wool, and that barrel remains dark. When I shot it, I could tell the interior was eroding away! You could see the rifling change at the throat! It would group on an 8.5 X 11 inch sheet of paper at 100 yards. That was about it.
I did bed the rifle, installed a taller front sight, but I have done nothing else for the thing. It is just not worth it to spend $400 for a new barrel, and I am not interesting in spending the time screwing on a old surplus barrel.
I soaked the German Mauser in Sweets, used JB bore paste, then steel wool, and that barrel remains dark. When I shot it, I could tell the interior was eroding away! You could see the rifling change at the throat! It would group on an 8.5 X 11 inch sheet of paper at 100 yards. That was about it.
I did bed the rifle, installed a taller front sight, but I have done nothing else for the thing. It is just not worth it to spend $400 for a new barrel, and I am not interesting in spending the time screwing on a old surplus barrel.
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