The apes in the movie Planet of The Apes hunted men and used guns, cudgels, whips, nets and other weapons to do so. It all seemed pretty far fetched but made great science fiction. The thing is, it evidently is not all science fiction, at least regarding apes using weapons to hunt.
A troop of chimpanzees, in Senegal, has been found to make and use spears to hunt animals on which they prey. They have been observed doing it for many years. It makes me wonder if a real life Planet Of The Apes is not all that far in the future as it was in the movie. More info here: http://www.iflscience.com/plants-and-animals/innovative-female-chimps-may-have-pioneered-tool-use-hunting
All the best,