Thanks, .44
I don't intend to shoot 50-60 grs. of black powder through the Walker. As I stated in one of my other posts on a different thread I'm not a wart hog. And I intend to shoot cartriges that's why I want a conversion cylinder. To the best of my knowledge, a long Colt brass will hold around 34 grs of the Holy Black in FFFG, I think that should be enough to get a 200gr. bullet downrange far enough to clang a target but I really will have to experament to find out which load/bullet the Walker likes.