Barrel (weapons)

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A barrel is a part of a gun. It is a long metal tube that the bullet goes through after it is fired. Guns can have many different sizes of barrels. Usually, longer barrels mean that the bullet will hit the target more often. Barrels usually have spiral grooves on the inside called rifling. Barrels with grooves spin the bullet around faster as it exits the gun. This makes the bullet even more stable and more likely to hit the target.