FMJ ammunition is not commonly utilized in self-defense scenarios due to the possibility of the bullet impacting an unintended target. It's a small-arms projectile that may be fired from concealed carry firearms. Hollow-point bullets are preferable for killing and self-defense scenarios. They expand upon impact, causing multiple wounds from one shot. The only advantage of using FMJ for self-defense is the fact that it can be purchased in large quantities at a time. The downside is that it's more expensive than other types of ammunition and might not be available in all locations where you might need it. If you use FMJ for self-defense purposes, make sure you buy hollow-point bullets. This will make your shooting more effective and reduce the chance of hitting an innocent person by accident. FMJ ammunition can also be used in hunting applications. Since it produces less noise and has greater penetrating power than larger caliber rounds, it's ideal for hunting small game. However, since it does not produce much ballistics energy, you'll need to load it into a high-capacity magazine. This type of ammunition is not recommended for hunting humans or large animals because it is too inefficient.