well not 200 years agothey were still using some 577-450 100 years ago.
But yes, if your wanting to shoot MH you will need to reload. Yes from time to time you can find some older factory ammo but its going to be expensive.
you can find cases, I believe Bertram out of Australia still makes a run of brass from time to time, or you can get reformed 28 gauge brass shot shells. There are a few threads on reloading 577-450 here.
I think you meant to say 24 gauge brass shot shells![]()
This thread is putting everything into perspective. I've been watching British Muzzleloaders on YouTube and recently his collab with 9-Hole Reviews and was thinking "that looks like it would be a really fun gun to shoot!"
But now, knowing the limited availability of brass, it'll have to be a great deal for me to jump on it if I see one
They did chamber the same rifle in .303, maybe that would be a better choice.