The Matter Cannon is a portable railgun, which can shoot small projectiles; It causes damage is based on its ammo. Since it is an powered weapon, it requires charging in the Charger. Ammunition can be refilled in aME Chest, or ME IO Port as it functions as a single item Storage cell, similar to 1k ME Item Storage Cell
Its battery can hold up to 200k ae and consumes 1600 ae per item fired. ( +1 item fired per Acceleration Card )
A a general rule heavier metals inflict more damage, and lighter non metal iems are less damaging.