I know that some people think its crazy, but I just finished shooting 50 abrasive :eek: coated bullets down my new .243 barrel. I used David Tubb's Final Finish. Shoot 10, clean, shoot next 10, clean, etc.
Best group before: 2 1/2 inches. First group after: .5 inches.
I've used this with two other rifles, but the results were not so dramatic. Now I'm really convinced.
Student
P.S. The .243 barrel was the roughest looking I have ever seen, as far as tool marks goes. It is now pretty smooth.