a big harpoon gun made in a fallout 'purpose built from salvaged materials' style, and its not gonna be used on whales but as the weapon for a large girl
three main shot types, all based on the same 25mm wide wooden shaft and mounting
Pilum: long thin head made to pierce through armor, simple construction
Broadhead: a big X bladed head with less piercing power than Pilum but heavier damage
HE: modified Broadhead with a big explosive charge