Shotgun slug triggers a live 9mm round upon impact

I agree, Chief! It's an interesting concept though. Thinking about it I'm seeing maybe a powder burn channel and have the pistol round fire in flight. Like a base ejection mortar or howitzer round.

I don't know if these are actually a production item. Hand loading might be an option it they make the components available. If I find out more info I'll try to update this post.