The only TC I've ever seen broken was with a 45 Win mag. The factory loads are hot and the guy tried to "improve " on factory loads , well a combination of high pressure and that big case head cracked the frame on his TC. Not exactly a blow up but a ruined TC anyway. A round that should be loaded with a little caution. May be fine for an Encore but a little big in the head for a TC frame. just my 2 cents worth. Also saw a Ruger blackhawk cylinder split by a 45 ACP cylinder lengthened to accept 45WM. Use caution the factory has pressure guns to test their loads most of us don't.