I have a chance to buy a TC White Mountain Carbine .50 cal. flintlock for $150. Condition is good. Been looking for an "entry-level" flint (posted question last week). Is this a good choice and price? I like the feel and the simple, compact design. Will the short barrel limit the loads I can shoot? Barrel is stamped for "black powder and pyrodex" - Am I assuming correctly that I can use pyrodex pellets? Obviously I'm new to this. Any good advice would be appreciated.