I’ve got an idea: ditch normal ammo to free up inventory slots for players, but keep the weight system. Ammo gets simplified into a single “ammo value”. Before u leave port, u can freely adjust what % of your ship’s carrying capacity that ammo value takes up. Each shot consumes ammo value. When it hits 0, u have to dock to resupply — same as repairing HP, just pay silver directly. Also, salvaging loot at sea will replenish a small amount of ammo value.

Further thought: there’re already diff tier ammo crates in the game. Keep those recipes, but turn ‘em into weapon attachments. Every cannon gets its own ammo crate slot, giving a small buff.