Which part of a firearm serves as the bore through which the projectile travels?

• A. Magazine
• B. Hammer
• C. Barrel
• D. Receiver

Answer: (C)

The bore is the hollow interior of the barrel—the passage the bullet travels through after the powder charge ignites. The barrel is that long tube attached to the receiver; it provides and guides the path for the projectile and, if rifled, imparts spin for stability and accuracy. The other parts have different roles: the magazine stores cartridges before feeding them into the action, the hammer is part of the firing mechanism that strikes the primer, and the receiver houses the action and supports the barrel. So, the barrel is the component that contains the bore through which the bullet moves.