RE: Shotguns and Silver Dimes....?
I saw it done on a Western show on the History channel. They shot the dimes out of a double barrel 12 gauge at a pig side hanging at something around 10 feet away. It would leave some bad bruises I bet, but there was no penttration whatsoever, even when the dimes hit edge first. They also said it wouldn't be unsafe to do, but I wouldn't try it.