If you’re reading this, you’ve probably had a conversation with someone in the last few days who asked, “Why do ordinary law-abiding people need those semiautomatic firearms with magazines that can hold more than ten cartridges?” There are lots of sound answers.
For one thing, defensive firearms are meant to be “equalizers,” force multipliers that can allow one good person to defend against multiple evil people. To allow one good person to defend against a single evil person so much stronger and/or bigger and/or more violent than he or she, that the attacker’s potentially lethal assault can be stopped. History shows that it often takes many gunshots to stop even a single determined aggressor. Most police officers have seen the famous autopsy photo in the cops-only text book “Street Survival” of the armed robber who soaked up 33 police 9mm bullets before he stopped trying to kill the officers.
He shot several of them, and discovered that it took so many hits to stop them that he placed multiple loaded handguns every few feet along his workbench. That’s not possible in a home, or when lawfully carrying concealed on the street: a semiautomatic pistol with a substantial cartridge capacity makes much more sense for that defensive application.