The MetaCannon was a type of Chiss artillery weapon that was capable of firing a variety of projectiles into both orbit and onto the ground.
The MetaCannon was one of the largest field artillery pieces that could be drop-deployed aboard the landing craft used by Chiss forces in the Swarm War. It was designed to fire charric maser beams, blaster bolts, or old-fashioned shell projectiles, perhaps including delivery systems for chemical and biological agents. This was accomplished by changing the barrel, but the weapon was unwieldy, and could not always react well to changing enemy tactics.