I'm a bit confused here: the majority of the uses for guns seem to not be to 'hurl a chunk of metal through the air at high speed' but the intended outcome: to wound or kill someone. Sure, there is hunting but since the advent of the farm hunters have seen less and less employ, to the point that some societies have no hunters at all.

Guns are universally classed as 'weapons' not as 'metal object throwers'.