Ammo (noun)

Bullets, shells, or other projectiles used in firearms or artillery.

Origin:

Shortened form of ammunition, which comes from latin munitiō, from munire ("to fortif.y")

Examples:

1. The soldier checked his ammo before heading out on the mission.
2. The shooter ran out of ammo and had to reload.
3. The gun store had a wide selection of ammo for different types of firearms.
4. The ammo used in the rifle was armor-piercing.
5. The ammo was stored in the armory for safekeeping.