Metal Storm - Devastating Weapon
Reloads?
You can’t carry the whole load out in the barrel …
i wonder if you reload it by muzzle loading it 
There’s a video floating around with a 203-ish sort of GL showing the shooter opening the breach and loading in several grenades. The question, I guess, is whether the ability to bloop off a bunch of 40mm is worth having to lug them all around in the weapon.