I had a flintlock Dixie Tennesee Mountain Rifle that I built from a kit back in the 90s. Nice quality gun but was very muzzle heavy.
About 14 years ago I happened upon this rifle at Dixon's and it came home with me:
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It is a Dixie TMR that was restocked in curly maple as a Pennsylvania rifle by George Dech. He retained the barrel, lock, triggers, and ramrod (which I replaced because it was some Japanese mystery wood). If you look closely, you can see that the barrel was turned to be 1/3 octagon x 2/3 round. This shaved at least a pound off the rifle and while it's still muzzle heavy it's much better balanced than the full octagon barrel.
In my experience the barrels are good and the locks spark well.
Note that they use a 9mm diameter ramrod, not a 3/8" rod. Track of the Wolf carries spares.
The Dixie TMR was discontinued several years ago but if you like it and the price is right, go for it.