9mm for Home Defense
Why 9mm is the most common home-defense handgun caliber — capacity, control, and the right ammo.
The Short Answer
9mm is the default home-defense handgun caliber for most people, and the reasoning is sound. It offers high magazine capacity, soft enough recoil for fast and accurate follow-up shots under stress, and — loaded with quality jacketed hollow points — terminal performance that meets the same FBI standards as larger calibers. A full-size or compact 9mm with a weapon light is an easy gun to shoot well when adrenaline is high.
For home defense specifically, choose a proven defensive load (Federal HST, Speer Gold Dot, Hornady Critical Duty) and confirm it runs 100% in your gun. Add a weapon-mounted light so you can positively identify a target, and store the gun secure but accessible. While shotguns and ARs have their advocates, a 9mm handgun is the most manageable and retainable option for many households.