1. Get fresh 777 . A couple of years and it gets inconsistent.
All this is assuming the bore is ok.
Have heard this about 777. That's the reason I decided not to use it and stick with black.
Sights are another thing. Right now I am still using the factory sights on my Hawken although it is a GM round ball barrel. I did try some fiber optics a few years ago and group's looked more like patterns, too much Starburst from the front sight and made it very difficult to get a good picture.
Might try to find a tang mounted peep if you can
Is your front steel or does it have the tiny brass bed on the back? If brass you might take some 0000 wool and brighten the brass.
A good cleaning to get rid of anything left from years past would be a good, simple and free start. I still prefer hot soapy water for black but no telling what else could be in your barrel if you shot something with a plastic base on it.
