system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do bullets have curved tops rather than sharp, pointy tops?

It seems like a sharp top would pierce the target better, which is usually what a gun is intended to do, so why don`t they make them like that?
gpt
Bullets with sharp points are meant for maximum speed. The power of a bullet comes from momentum, which is a product of weight and speed. A high powered rifle round doesn't weigh much, but goes *really* fast. A blunt bullet is designed for closer range. The blunt tip will have *less* ability to cut through the target, so it will impart all of the energy in its momentum into the target. More energy = more damage. Hollow points maximize that effect by mushrooming on impact and imparting all of their energy into the target.