Pittsburghunter that is an interesting little bit of information. I always suspected that. In fact I asked a Thompson Center Tech once if that was the case. They kind of hemmed and hawed around and said ThompsonCenter makes their own barrels. I know Knight rifles are all Green Mountain Barrels. You can have a lot of fun with a flintlock with a 1:28 twist Green Mountain Barrel, when you load sabots in it and start plugging the 100 yard bulls eye out ....