When Worf fires his Photon Rifle at the tagger that is approaching him, it is out of ammo. So he smashes it.
Later on, Picard says "Can we fire here and not risk the collapse of the cave?". Data says "I believe so". So everyone fires. Why does Worf's Photon Rifle actually work, since it is out of ammo?
I've not seen this movie in about 3 months, but I'd say his Phaser Rifle jammed. Cor blimey, 4 centurys in the future and guns still jam....shish
:)
Shen