The 4 elements of a complete round are: Fuze, Projectile, ________, and Primer.

The 4 elements of a complete round are: Fuze, Projectile, ________, and Primer.

• A. Propellant
• B. Cartridge Case
• C. WAD
• D. Primer

Answer: (C)

A complete round relies on four parts to get the projectile from the barrel to the target: a fuze for timing, a projectile to deliver the payload, a seal/spacer between the propellant and the projectile, and a primer to ignite the charge. The wad serves as that spacer and gas seal between the propellant and the projectile, helping contain and direct the expanding gases so the projectile starts moving efficiently and consistently. It also protects the projectile from propellant fouling as the round begins to accelerate. Because of this sealing/spacing role that completes the internal assembly in many rounds, the wad is the best choice.

A complete round relies on four parts to get the projectile from the barrel to the target: a fuze for timing, a projectile to deliver the payload, a seal/spacer between the propellant and the projectile, and a primer to ignite the charge. The wad serves as that spacer and gas seal between the propellant and the projectile, helping contain and direct the expanding gases so the projectile starts moving efficiently and consistently. It also protects the projectile from propellant fouling as the round begins to accelerate. Because of this sealing/spacing role that completes the internal assembly in many rounds, the wad is the best choice.