Do "archers" have infinite ammo?

[Bloax]

I'm asking because my heroic FeMo of Chei just got splatted by a stone giant, due to large rocks.

Now, I'm asking about infinite ammo because for one of my moves, he threw two rocks at me..
..And I moved like, 8 tiles. Died going up the stairs.

So that'd be about 17 large rocks, plus the two he threw at me while I was going up the stairs.
I didn't know the 2-5 large rocks they drop were actually 20.

[KoboldLord]

No, they don't have infinite ammo. But they will pick their spent ammo back up if you allow them to walk over it again. As a Chei-follower, you gave that giant ample time to pick up its stack, throw its entire stack, close to melee, and repeat several times. It is probably a bad idea to attempt to run for the stairs as a Chei-follower.

[Bloax]

No, he didn't pick anything up. He was down a corridor, and I was just coming out of another. He stood there the entire time, throwing large rocks at me from a distance.
Throwing loads of large rocks at me.

[mageykun]

Could he have looted the extra large rocks from other dead stone giants?

It's usually not a good idea to make your escape contingent on expecting the enemy to run out of ammo, though. :p

[nago]

Well, with stone giants usually works - as they carry only few rocks - unless you worship Chei

[Bloax]

They only have infinite rocks if you just got back to the game after an entire day, will die in a single hit and 3% xp away from another life.

[galehar]

Large rock stacks are created with a quantity between 2 and 6. However, it's possible that it found more lying around and picked them up.

[Bloax]

Well I must've been that unfortunate to have it pick up a huge stack of them within the first 30 turns on the level.

[Roderic]

Chei followers should have an active?passive? ability related to "bullet time" or something when projectiles approach to them. In practice, it is a bonus to dodging for incoming projectiles, not for close combat hits, though.