shoot 777 in my primitives, Pennsylvanian and trapper and have since they were new because I was told they are less corrosive and it seemed the right thing to do. I shoot pellets in my inlines because that’s what they were designed for I think.. I shoot my primitives with open sights and have a difficult time of it as I age I can’t see to well so the rear sight is pretty blurry. Try getting a sight picture when there are three parallel rear sights bouncing around. The Pennsylvanian Long gun gives the best sight picture because the rear sight is pretty far down the barrel. By the way that is in part the reason for the long barrel design. The historical old timers couldn’t see worth a damn either. Any when I started less corrosive seemed like a good idea since I was not sure about the cleaning thing. I have gotten better at cleaning over the last few years. Inlines with scopes seem to match.