I picked up a magazine last month, new company is making the TC Encore frame and a few barrels. I forget the name, don't know if TC barrels readily fit.

I have 4 frames - two as handguns and two as rifles, Contender and Encore. I have the usual chamberings, but among the unusual are 405 Winchester, 375 JDJ, 350 WinMag, 8mm Mauser and of course 45/70 - all in handgun configuration. My favorite in rifle is 25.35 WCF. Super pleasant to shoot and for some reason accurate as heck.