Ward's Western Field .410 bolt-action, that is longer than most full size rifles, threaded barrel, with Mossberg chokes that screw on the end of the barrel.
I own that one still.
Strangest, Ugliest one I've shot, was an old butt ugly "Tokarev Pistol", some tall Merchant Marine fella brought down here recently.

Strangest was a flintlock mini blunderbuss pistol. No sights, only shot it once, loaded the old fashioned way, (by the owner).
Watermelon at 15ft. was torn apart. He was one of those Revolutionary War re-enactors, did some Civil War stuff also, had some "strange" guns in his house. He said they all worked. But they were not supposed too.

Can't beat the flame-thrower,....Just WD-40 and Bic lighter, is all I got,....
