Iam looking at buying one of these ,used of course but in mint shape. It’s a .58 and I was told it takes a .577 projectile. Question is would this be made for a Minnie ball bullet or round ball. Iam used to shooting conventional hawkin style guns with patch and ball , just not sure about these.
The official calibre of this English military carbine is .577". Our American friends, more used to their .58"cal Springfields, called ALL imported English-made Enfield rifles and carbine .58"cal to avoid confusion. What you call it matters not a hoot, so long as the bullet you shoot is about 1 - 1.5 thou smaller than the bore at the muzzle. My own Musketoon, serial #11XX, was made by Parker-Hale in Birmingham in 1972 - I bought it 1974, and I've been shooting it ever since with either the Lyman mould noted about, or the similar-dimensioned Lee. It 'likes' a somewhat thinner skirt bullet, BTW, but will also shoot the .58"cal Pritchett-style flat-base bullet quite well. For noobie shooting on our monthly guest days, I load it down to 45gr of 3Fg - the effect, for a noob who may never have tried ANY kind of gun before, let alone a big-bore muzzleloader, is still impressive enough to be, uh, impressive.
Here I am shooting it a few years back....
https://www.youtube.com/watch?v=dvCsmZPBUPY
Hickock45 has made a much better video, though.......
BTW, the 'progressive rifling' refers to the DEPTH of the rifling, not to a tightening of the spiral. The Musketoon has deep rifling at the breech end, gradually getting less towards the muzzle.