50-300 USD or so
100-300 USD
$400-$450
I have seen them selling for between 100-175 dollars,depending on overall condition and a good bore.
1975
$400 - $450 plus $125 for tang sight per one listed on eBay now. Outstanding rifle had one for decades.
If you have the money.
Aftermarket and some of the kit barrels do not have the Renegade stamping, or it may have been refinished at some point.
200-400 USD
50- 250 usd
Depending on the model and condition they can range from $300 to $650 If you identify the model you can get a much better idea of it's worth. The most common models in flint are the Hawken and Renegade, but there are several other models out there. An easy way to figure it out would be match pictures on the on line auction sights like gunbroker, auction arms and guns america, there you can also get a feel for what they are selling for,
If you mean the Thompson Center muzzle loading rifle, contact TC customer service through their webiste at tcarms.
$1o0-$250, depending on condition.