noun
ammunition
am-yuh-NIH-shuhn/ˌæmjəˈnɪʃn/
Projectiles and charges supplied for use in weapons.
The display groups rifle cartridges and artillery shells as ammunition.

Etymology
Latin munitio meant fortification or defense; its descendants came to name supplies needed for warfare. Ammunition narrowed from military provisions generally to material fired from weapons.
In context
use um live rounds Tracer bullets so you're shooting at a Target and every so often instead of the regular ammunition you've got something that that lights up
More examples
- The soldiers carry spare ammunition in sealed boxes.
- Her careless remark gives her critics fresh ammunition.
- The report provides ammunition for both sides of the debate.