Yes I know Lord Tony has more barrels, but...
I do like. Idea for scripting:
Left click fires the barrels one at a time, max damage from one barrel firing would be 50? Also, it would take forever to reload.
Right click fires the rest of the barrels, causes an explosion that kills the user and people in a certain radius? Maybe 1-5 bricks insta-kill, 6-10 bricks 40 damage?