Swamped 50cal. Rice barrel rifling.

[Eric Kettenburg]

Unless Rice have changed their rifling styles and methods, that muzzle picture sure as heck looks like a Colerain barrel to my eye.

[Scoper05]

Yes we figured it out that it's a Colerain. Tennessee Valley Muzzleloader use both rice barrels and Colerain barrels it was supposed to be a Riceboro but they screwed up and made out of Colerain Barrel.

[D. Taylor Sapergia]

Your Colerain barrel will shoot just fine.  It doesn't matter that it isn't a Rice barrel.

[Eric Kettenburg]

OK, I wouldn't worry about it unless you specifically paid extra for a Rice barrel.  I find the Colerain round bottom grooves to be more prone to burn through on thin patches and find those barrels usually work best with thicker patch material.  I've never found accuracy to be an issue - those guys make a good barrel.

[Scoper05]

Lol.i didn't pay extra for the Colerain barrel.
  It's funny because when we figured out that they screwed up she said that the Colerain barrel was$25 more so I would have to cut a check for the difference.lol
She was joking of course.