Your description really doesn't give us much of a clue. The Dixie Gun Works Southern Mtn Rifle was made in Japan, and was a heck of a good gun, although very heavy. I know that many folks cut 10 inches to a foot off the muzzle end to lighten them up. They came in many calibers , LH RH and flint annd perc.
Dixie has had so many guns made over the years, some very good and some not so good.
Without a picture, it would be hard to tell.