You might get clarification on the term "locked out" before you start saying someone is in trouble with the law.
And by clarification, I mean from the person with the rifle, not strangers on the internet. They may mean a bullet button magazine, they may mean a Colt Sporter like Microgunner was referring to. They may mean they lock it outside their house at night so it can't pee on the carpet.
Stopping power: The power some guns have to make you stop what you are doing and get your wallet out.