A Gun barrel is a tube through which a projectile is fired from a gun. It is usually made of steel or other metals. The gun barrel is one of the most important parts of a gun. It determines the accuracy and range of the weapon.
Gun barrels come in different sizes and shapes. The most common type is the rifled barrel. This type of barrel has spiral grooves cut into it. These grooves spin the projectile as it travels down the barrel, making it more stable in flight. Rifled barrels are used in most handguns and rifles.
Smoothbore barrels, on the other hand, do not have these grooves. This type of barrel is often used in shotguns and some types of artillery. Smoothbore barrels are less accurate than rifled barrels but they can fire projectiles at a higher rate of fire.