It’s kinda hard to tell from this picture, but it looks like some kind of .308 or maybe .30-06 cartridge.
Single-shot handguns that fire large rifle rounds certainly exist and fire much larger rounds than that. Kentucky Ballistics on YouTube has many videos showing his collection of them. The video where Eddie Hall fires them all is a good vid where he shows many of them off.
It’s kinda hard to tell from this picture, but it looks like some kind of .308 or maybe .30-06 cartridge.
Single-shot handguns that fire large rifle rounds certainly exist and fire much larger rounds than that. Kentucky Ballistics on YouTube has many videos showing his collection of them. The video where Eddie Hall fires them all is a good vid where he shows many of them off.
If that’s a .308 cartridge, the gun would be too small to hold.
You’re just guessing on this stuff, aren’t you?