This datapack is made for Minecraft 1.14+ and adds more crossbow ammo into the game.

It adds 5 new types of crossbow ammo-
Bolt - A new higher damage ammo
Golden-Tipped Bolt - An even stronger damage ammo
Fire Bolt - Lights mobs and the world on fire
Lightning Bolt - Strikes lightning wherever it hits
Explosive Bolt - It Blows stuff up

These each have custom textures that you have to use the texture pack included to see. You can play without it, but it won't look as good.