that does look pretty awesome!

Cool !!!!!!!

If the thing managed to hold up to the challenge, I would have some serious problems. The resulting salt peppering my farm would make a Russian scorched earth policy look lame and all the salt in my house would turn the dust bunnies white. White shows up way worse then brown. Can't have white dust bunnies. My salt storage would have to increase by several hundred lbs. just to get through one summer. Also, I don't think its a big enough caliber to handle the B52 horse flies we have here. That would take some serious rock salt.

Far enough OddDuck but from the idea of a great way to do some very cheap and easy and silent target practice, its a hoot and half..

I saw stories of wasps and cockroaches killed at short range. I would like to attack some garden pest without salt, I'm sure sand would work fine if you sifted it to get uniform granule size.