Simple Musket

Musket

Holding rightmouse while unloaded will load a bullet from the inventory, similarly to the crossbow.
Holding rightmouse when loaded aims the musket, and releasing fires the bullet. Aim time determines the accuracy.
Reloading takes 2 seconds, and aiming for 3 seconds is enough for perfectly accurate shots by default.
Firing a musket produces a visible cloud of smoke and the shot can be heard from far away, giving away the user's position.

Cartridges

Standard cartridges: Deals 16 damage and ignores 10% of the target's armor efficacy.
Hellfire cartridges: Deals 25% more damage than standard cartridges and decreases the target's armor by 25% for 30 seconds. Found in bastion chests or by trading with piglins.
Hex cartridges: Has 25% higher velocity than standard cartridges and boosts musket enchantment effects. Crafted with an enchanted book and an equal number of gold nuggets and cartridges in a crafting table. Also sold by weaponsmith villagers.
All cartridges can be fired from dispensers.
Cartridges are deflected by breezes and ricochet off of iron golems, dealing only 25% of the damage.

Enchantments

Firepower (I-V): Increases armor piercing of fired bullets by 10% per level.
Longshot (I-II): Amplifies damage against distant targets. (15-60% bonus at 16-48 blocks, 25-100% at level 2).
Repeating: Allows the musket to fire twice per reload. This amount is increased when reloading after a kill.

All enchantments are mutually exclusive with each other.

Gunslinger/Musketeer Illagers

Spawns near outposts and will appear as part of raid waves.
Being expert shooters, they have an attack range of 24 and do not cause friendly fire damage.
They use a sawn-off to defend themselves at close range and retreat when approached.

Configuration

Reload and aim time are configurable between 20-80 ticks.
Base cartridge damage is configurable between 12-24 damage, and the damage multiplier of Gunslingers are configurable.
Enchantment parameters can be changed with datapacks.

Compatibility

If Consecration is installed, enchanted/hex cartridges remove undead protection. 1.20.1/1.21.1 Forge/Neoforge only.
If Enchantment descriptions (or equivalent mod) is installed, the details of each enchantment will be displayed in-game.
If Useful Spyglass is installed, Muskets can be used with the Precision enchantment for increased damage and zoom while aiming.
(1.8.1-1.21+, Developers only) The behavior code for musket usage by mobs has been refactored and should allow for use by other mods for compatibility purposes.

Modpacks

This mod can be included in any modpack.

Legacy features

Spoiler

Blast Enchantment (I-II) (1.5.0 - 1.6.0): Increase main shot damage to 125% within 8 blocks and fires 4/8 additional pellets with 25% damage and increased spread. The maximum damage is dealt if the main round hits, and shrapnel damage doesn't stack.
Copper rounds (1.0 - 1.4.2): When fired, creates a wide spread of 5 pellets which deal 4 damage each and does not pierce armor. Pellet spread affected by the Deadeye Enchantment.
Gold rounds (1.0.0 - 1.4.2): Does not pierce armor, but deals 9 damage which increases depending on how heavily the musket is enchanted.
Hex Cartridges (1.5.0 - 1.8.1): Halves the target's defensive enchantment efficacy and increases an attacker's damage and armor piercing enchantments by two levels. Sold by weaponsmith villagers.
Netherite/Hellfire bullet loot configuration (1.0 - 1.6.0): Hellfire cartridges can have their crafting recipe enabled/disabled, as well as their loot/barter availability.
Gunslinger range configuration (1.6.0): The attack range of gunslingers is configurable between 24-40. Intended for use with Enhanced AI.
Deadeye (I-III): (1.0.0 - 1.4.2): Decrease aim time by 25/38/50% and move speed penalty while aiming by 50/75/100%.

Credits

Cartridge sprites were originally made by ewewukek and modified by me. Permission to use granted through CC0 on his Github page.