It seems to me that myself and others "show their ignorance" here every time we ask a question about something we don't know. Like, about how things may have been done at some point by someone who was born 108 years ago. Personally, I think I would prefer to exploit the accuracy, power, and effective range of a more conventional gun that could be used (properly aimed and fired) for numerous tasks besides just shooting something angry at short range in a trap that could hurt/kill/eat me. I think I would also prefer something spicier than a pistol round to make that happen in the event of a (grizzly?) bear or wolf, regardless of what it was being fired from- I imagine if I had some dangerous critter in a trap, that might not be the only one in that area- not to mention the high price tag of the contraption in question.
Since the only potentially dangerous critters around here besides reptiles (easy to kill) -and pretty much any area of the SE US- are black bears (illegal to kill in Fl, but not that hard to kill elsewhere if legal), Panthers (also illegal to kill in Fl., but not that hard to kill elsewhere if legal)- and I imagine the best thing to do is call FWC should either get accidentally trapped- coyotes (very easy to kill- its just a dog) and hogs (also easier to kill than most people think- farmers kill domestic pigs with 22's or claw hammers) I feel confident my 10mm or whatever boring long gun I am carrying would be more than up to the task.
In any event, it seems there are more than a few ignorant souls here who also don't see much of a point in these things, other than the previously mentioned purposes: LARPing (had to look that up), range toy, Hollywood, and novelty. And I did enjoy Fallout. It was entertaining, so the show did exactly what it was designed to do, at least for me- even if it did make me think about a gun and cause me to ask the question of Why. As far as the little tiny cowboy gun, I'm not sold- but I truly hope those who have them enjoy them for whatever purpose they own them for. Lastly, nothing against "old timers". They taught me lots of stuff over the years- just not the proper/intended use of a mares leg gun. I'm only 56 for 3 more weeks, so I aspire to be an "old timer" myself one day- even though lots of guys at the dojo, the range, and the bike shop when I roll up on a shovel head with a kick starter say I already am one.