It's a Taurus Model 85 Barrel.

I've seen this before, it's the result of an over torqued barrel, and it isn't exclusive to Taurus either. In fact, I've seen it more often on Rugers and to a lesser extent Smith & Wessons than I have Taurus, so all you "hurr hurr toris" people who like to parrot what you hear about firearms brands you don't actually own because your uncle's, sister's, cousin's former roommate owned one and it was allegedly of poor quality in ways which were never explained can give it a rest.

Yikes! That must have been painful. How was your hand afterwards? Hopefully you didn't have to type that all out with only one hand, although it wouldn't surprise me if you did, assuming that it literally exploded in your hand.