Omega45 ,
I love the T/C Triumph Muzzleloader. I cannot think of one thing to say bad about it. I have owned Encores, Pro-Hunters, and used an Endeavor a few times. The Triumph right out of the box is a much better ML then the Encore, Endeavor etc.
My testing has been done in different zip codes and temps. In very cold temps the Triumph failed. I can tell you it probably had 15 shots on it by then. But it has been tested with BH209 for atleast 400 shots.
Like builder459 says, you do certain things you wont have any problems. That's very true, i just dont want to. I want it to be right, right out of the box. And now it is with Knight rifles.
As far as the Triumph, just call western powders and they will tell you all the problems they have. They are good people and will share that information with you.