RE: what grain.....
mauser,
That is odd... I can shoot several bullets without cleaning before I absolutely have to. I am using Triple 7 100 grain pellets in my inline and 80 grains loose powder in the flint. When I was using Black Powder and roundballs in my flint, I would have to clean almost after every shot. But when I switched over to Clean shot and now Triple 7, that is not the case.
Anyway, keep trying to find the best solution for you and your rilfe. I'm sure you will find it. Also, I'm jealous since you have the rilfe I want and hope to own someday. My Deerhunter is good for anyone just getting into ML and since I've been doing it for several years, I really desire a better flint rifle but can't afford one now. Though, the inline I have is a lot of fun.
Tom