We were not able to get a "Breeching round" for a shotgun, but my friend Blain had sent me a sample 12 gauge Brennke slug to test and this seemed like a good time to use it.

Here I am getting ready to test the shotgun.

This is the result.

It blew it to pieces!

This picture shows where we found the biggest piece of the lock, 50 feet behind the target.

This is the rest of the lock.

And here is a look from where we found it back to the target area.