90mm High Velocity Gun (D20 Modern Equipment)
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M512 90mm Smooth bore High Velocity Cannon
PL 7 UNSC, Misriah Armory
90mm Tungsten Armor Piercing Ballistic Capped Round
The M512 90mm Smooth bore High Velocity Cannon is the commonly used armament of the M808 Scorpion Main Battle Tank.
Heavy Weapon (Exotic Firearms Proficiency)
|Rate of Fire
90mm High Velocity Gun
When a shell from the M512 90mm Smooth bore High Velocity Cannon hits its target, it explodes like a grenade or other explosive, dealing its 15d6 points of damage to all creatures within a 10-foot radius (Reflex save DC 18 for half damage). Reloading the M512 90mm Smooth bore High Velocity Cannon takes a single round (this is done automatically by the Scorpion Tank's auto-loader).
See this page for background information.