That bubba doing the overwrought Facebook post is a really poor actor. And his video IS a joke, a big act. He is clearly a legend in his own mind.

Yes I have fired several shots out of a full on BP loaded 4 bore, a Thomas Bland single shot weighing 19lbs, standard S.W. Silver "anti recoil" heelplate. I am 5'11" and at the time weighed about 170lbs.
I did not cry, cuss, whimper or do any of the theatrics of this hero…….sure, the thing recoils, but It is not heroic. I didn't even bruise.
After being used to shooting an 8 bore the 4 bore is not that much of a step up……

No, I had no iPhone & YouTube video back in the 1980's, and I'm not an attention whore like Bubba.
- Mike