Fantastic Asgardnz! Can't wait to see your pics.
I know you said your .44 cal harmonica block mag is solid brass but your barrel is just a fake tube. Which makes me wonder that since your brass harmonica block mag would work with real black powder loads, would it be possible to make the rifle an actual firing model if you just replaced the fake barrel with a real .44 cal barrel? Sure would be nice if you could then you'd have a real firing version.
"This is my Remy and this is my Colt. Remy loads easy and topstrap strong, Colt balances better and never feels wrong. A repro black powder revolver gun, they smoke and shoot lead and give me much fun. I can't figure out which one I like better, they're both fine revolvers that fit in my leather".
"To be sure of hitting the target, shoot first and call whatever you hit the target".