Just clean it up as best you can. It takes allot of rust to spoil the accuracy of a B/P rifle. My advise buy a wooden dowel around 5/16th dia. Split its end a little. Put a small piece of emery cloth on it. Spin it in a slow speed drill and run it up and down a dry barrel a few times. Doing so will level those pits out some and make it a bit easier to load. That's about as cheap a fix I know that may work. After that its barrel liners or boring to a larger caliber.
"Any rifle will shoot bullets through the same hole. You just have to be able to see well enough to aim right."
Last edited by Sure Shot Mc Gee; March 2, 2013 at 05:01 PM.