Golyó

Golyó is the Hungarian word for a bullet, the projectile fired from a firearm. A bullet is usually made of metal and is propelled by the ignition of a cartridge's propellant. In firearms with rifled barrels, the bullet is given a spin that improves stability and accuracy over distance. Most bullets are designed to exit the barrel at high velocity and to perform under various conditions.

Bullets come in a variety of designs, including full metal jacket (FMJ), soft point (SP), hollow point (HP), and tracer rounds. They may have lead cores with copper or gilding metal jackets, and some are steel-cored or frangible. The choice of bullet depends on intended use—target shooting, hunting, or military applications. Some bullets feature armor-piercing or explosive materials, which are regulated in many jurisdictions.

The development of elongated bullets and rifling in the 19th century replaced round balls. The Minié ball and later jacketed designs allowed higher muzzle velocities, better sectional density, and improved ballistic coefficient. Modern bullets are designed to balance penetration, expansion, and weight to meet different performance criteria.

In many countries the sale, possession, and use of bullets are subject to firearms laws and safety practices. Officially produced as ammunition, bullets are used in sport shooting, hunting, and, to a lesser extent, in military contexts. Proper storage, handling, and compliance with local regulations are essential.