There are numerous new models of muzzleloaders on the market. 99% of them out to 100 yards will do a good job for you. With some good optics you can push that envelope even further as some of our members have demonstrated. I've never shot a Triumph but I have read a lot of good things about them. It would not be a bad choice. But you have to look at... how many days a year are you going to hunt with the rifle, what do you expect for shots, and last... how much do you want to spend.
For instance, I purchased a CVA Optima for around $209.00 new. It will get any hunting job done out to 100 even further yards. And it did not break the bank. I consider it a quality rifle. Are there better rifles? Sure. How much you want to spend. If the Triumph appeals to you, then that would be a great rifle.