Okay. I will defer to you on it. If true, maybe I can print me up a Ma Deuce! Haha.
Well, funny you should mention a Deuce.
If there’s ONE barrel you could have picked that does have a component therein that’s as hard as the Hinges of Hell, it’s a M2HB barrel. There’s a section in the barrel forward of the chamber for about 1/3rd of the length that’s lined with stellite. If you don’t know what stellite is, google it. It’s ferociously tough stuff. It’s the reason why a M2HB can withstand some serious rock-n-roll time. Rc’s in the mid-40’s and up.
But if we’re talking just civilian .50BMG barrels for single/semi-auto rifles, we’re back in the realm of “normal” barrel steels.