I'm not referring to anyone here obviously, it's just something I observed once.
A few years back at my club, I was talking to a guy who'd bought a revolver in
454 casul and I got from the way he was talking about it, he didn't like it.
He offered to let me shoot it, which I did, and I didn't like it either. I did not
find it fun, in fact just the opposite. I'd guess it would be good in the case of
an angry Grizzly but unless you go looking for one you're unlikely to need it.

While on the subject of firearms I wouldn't want to shoot, how about the 4 bore
Lord Roxton carried in The Lost World.

https://www.youtube.com/watch?v=hsvizH4U26E