The Doctor and Brigadier in “Battlefield”

You've got enough weapons here to fight a war.

That's the general idea.

It'll be useless, Brigadier.

Not this time, Doctor. [Opens an ammo box and holds up a round to show The Doctor] Armour-Piercing, solid core with a Teflon coating; go through a Dalek.

A non-stick bullet.

UNIT's been very busy, Doctor. We've also got high-explosive rounds for Yetis and very efficient armour-piercing rounds for robots. And we've even got gold-tipped bullets for you-know-what.

No silver?

Silver bullets?

Well, you never know...