A Quote From Jeff Cooper

Our continued African studies in depth turn up all sorts of interesting information. For example, the Zulus at Isandhlwana had very few rifles, but they wiped out the British force largely with spears. In the aftermath of that disaster, the Zulus acquired a great many rifles left on the field. They grabbed these up eagerly and used them in the subsequent fights at Kambula and Ulundi, in which they were totally overwhelmed by British musketry. Moral: It is not enough to snatch up an advanced piece of equipment. You must also know how to use it.