Years ago I tried this. I loaded some 12 ga shells with rock salt from our water softner. I put a box up at a very close range. The rock salt just turned to dust when it hit the box, from what I recall did no damage to the box, just dust on it. So unless there might be differences in types of salt of changes from 35 years ago, I would expect the same

John Boyd

Last edited by arrieta2; 01/01/11 03:26 PM.

John Boyd
Quality Arms Inc
Houston, TX
713-818-2971