Projectile

Projectiles are objects thrown by you or a monster, or shot with a launcher.

Thrown objects

Any item can be thrown (and thus be considered a projectile) if the entity throwing it is strong enough. Use the [t]hrow command to provide a list of readily-thrown items. You can expand this list to include your entire inventory by pressing [*].

Thrown items may receive a penalty to hit if there is an appropriate launcher (see below) for the item

Launchers and their ammunitions

Launchers and their ammunitions
Launcher	Ammunition allowed
Sling	Rock, Gem, Flint stone
Bow	orcish arrow, arrow, elven arrow, silver arrow and ya.
Crossbow	Crossbow bolt

To get the most out of the appropriate , you need to [w]ield the appropriate launcher and also [Q]uiver the relevant ammunition. Then you can [f]ire in an appropriate direction, possibly resulting in multiple shots, or throw the ammunition to fire a single shot. With an appropriate launcher wielded, you receive no penalties for either throwing or firing ammunition.