Hollow-point bullets are a type of ammunition designed with a hollowed-out shape at the tip. This design allows the bullet to expand upon impact, creating a larger wound channel. The primary purpose of hollow-point bullets is to increase stopping power while minimizing the risk of over-penetration, which can be dangerous in self-defense situations. These bullets are commonly used in handguns and rifles for personal defense and law enforcement. The expansion of the bullet helps to transfer more energy to the target, making them effective for stopping threats quickly. However, their use is often regulated in certain areas due to their lethality.