I don't think it's a matter of control for the general population because the general population follows the law. It's the the handful of what I'll call "Special" people who usually have something wrong with them. They think the law doesn't apply to them and they will usually stock pile and get illegal guns and sawed off shotguns and then go all out in killing people. While I think there should be a limit on how big the bullets can be that still won't stop from getting illegally.