Utterly Mad

Sammy:
The elder, along with all other geckos except the door guard, leave the tunnels to partake in the attack on the tower.
You'll catch up with them if you want to. It takes time to move about three dozen people without being seen.

You check the ammo in your compact assault rifle. 7,62 x 51.
And then the box. 7,62 x 51.

Well that's fortunate...
Seems like you have about 300 rounds then, after you've removed those that were destroyed by the machete. And that would give you a total of 11 magazines worth of ammo if you count the one that already was in.
Too bad you only have one actual magazine though...