There's a tiny hole in the bottom of the shaft of this fish hook. When a fish yanks on the hook, it discharges a 4mm centerfire cartridge and, hopefully, shoots the fish.
These unusual guns were produced in the late Nineteenth and early Twentieth Centuries. If you can find one, I wouldn't recommend using it, as doing so would almost certainly violate the second and fourth rules of gun safety.
Link | Photo: Wayne Driskill Miniatures
Nope, unless you're fishing for something that's likely to jump before setting the hook. Bullets travel VERY short distances in water. Especially the anemic bullet that would be in there.
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