The idea that TC barrels won't shoot conical is wrong any old timer that remembers all we did to make them shoot can. The exception would be the few that had off center QLA's and they did not shoot anything else well either.
I have shot them out of two Knights and an Omega, a Triumph and an Endeavor. I do have a Pro-Hunter in 45 that I have not shot them out of but I am confident I could if I found a need too.