TC's are good rifles, and I would not sweat a little rust on any exterior part, but if there's rust in the bore, the barrel isquite possibly ruined! Muzzle-loading weapons are very sensitive to bore rust - it is often impossible to get any accuracy at all from one that has any serious rust, OR PITTING in the bore. I recommend a THOROUGH EXAMINATION OF THE BORE WITH A BORESCOPE if you suspect any rust in it!! However, you COULD purchase one of the Green Mountain drop-in barrels for it, and cure any bore problems that way. But if you have to buy a new barrel, don't pay $100.00 for a lock, stock, and trigger!

Regarding the double-set trigger: this is the BEST type of trigger you can have on ANY KIND of a hunting rifle, IF you are willing to practice using it until it becomes instinctive. This trigger can be set and tripped without damaging anything, so you can use the DST for "dry-firing" your rifle without cocking the hammer. To use it correctly when hunting, you pull the rear trigger to set it ONLY when you are raising the rifle to take aim at the game animal, just after having brought the hammer to full cock!Then, the instant the sights are perfectly aligned, you just barely touch the front trigger to trip it, and the bullet will strike exactly where you aimed! Once you have practiced until operation of the DST is something you do without even thinking about it, it is the fastest of all possible triggers for hunting rifles.