What is the primary function of the barrel in a pistol?

The primary function of the barrel in a pistol is to direct the bullet during firing. The barrel is specifically designed to provide stability and accuracy to the bullet as it travels down the length of the barrel and exits the muzzle. Its interior, known as the bore, often has rifling—spiral grooves that help spin the bullet, improving its flight path and increasing accuracy.

When the trigger is pulled, the firing mechanism ignites the gunpowder in the cartridge, creating rapidly expanding gases that force the bullet down the barrel. The design and length of the barrel can also affect the velocity of the bullet and thus the overall performance of the firearm. Understanding this function is crucial for safe and effective shooting practices.