His foolish statements provided his opponents with more 'ammunition' to use against him in the campaign.
She had the 'ammunition' to prove her case. [=she had the evidence she needed to prove her case]
The troops were supplied with weapons and 'ammunition'.
(..) due to a containment anomaly... Ladies and gentlemen, due to a containment anomaly... All units, take position on boardwalk. Use liquid tranquilizers. Do not fire live ammunition. Claire, come on! Stop running! Don't just stand there! Go! Get inside now! Zach! (..)2015 Jurassic World
(..) in the food chain... and I'm not sure you want her to figure that out. Now, Asset Containment can use live ammunition in an emergency situation. You have an M in your armory. Put it on a chopper and smoke this thing! We have families here. I'm not gonna turn this place into some kind of a war zone. (..)2015 Jurassic World