Shell

Shell is an enchantment that can be applied to guns, shotguns, and snipers.

Information
Shell has a max level of III.

When applied to a gun, shotgun, or sniper, Shell will increase the damage done by the bullets when fired by 10% per level of Shell.

Obtaining
Shell can be obtained in the same ways as non-treasure enchantments in vanilla Minecraft (e.g. Enchantment Table, Villager trading, etc).