The M151 84 Inch Shell is the largest payload-carrying projectile used by the UNSC.


  • Weight: Approximately 9,350 Pounds (4 and 5/8 Tons)
  • Weight breakdown: Projectile 8,000 Pounds (4 tons), Casing 150 pounds, 1200 Pounds of Gunpowder
  • Charge: 1200 Pounds of gunpowder
  • Type of Ammunition available:
    • AP/HE (Armor-Piercing/High Explosive)
    • AP (Armor Piercing)
    • HE (High Explosive)
    • HDP/HE (Hyper-dense Penetrater/High-Explosive)


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