Bullets are weapons fired by guns; in war, they are one of the simplest tools for killing enemies or destroying materials.
Bullets can also be said to be a product of physics, chemistry, materials science, aerodynamics and technology. It is not only a product of civilization, but also a sharp weapon to destroy civilization.
Most of the bullets we see usually have one color, but in fact, there are many colors of bullets, such as green, red, black and white. Why? In fact, there are many kinds of bullets, and their uses are different. In order to distinguish and identify them easily in battle, the makers paint various colors on the tip of the warhead.