http://www.nzetc.org/tm/scholarly/tei-BucViki-t1-body-d1-d9.html

Some quotes:

Our progress was slow, and all the time the Mitiaro people, from platforms built up above their stone walls, showered slingstones down upon us. We could not stand up to return their fire. All we could do was to keep our heads bent forward so that the stones, which would have struck our heads, were stopped by our sennit helmets. You will notice that the helmet fits close against the sides of the head, but, being high, there is an air space between the top of the head and the top of the helmet. A stone that hits the top of the helmet has its force weakened, and so the head is saved from being split open


...the youngest son of Rongo-ma-tane stood upright on the points of the makatea in the supporting line behind. He had a sling in his hand, and, as he made a preparatory swing, he recited an incantation to direct his slingstone and give it power.... In his chant he called upon his own gods to direct his slingstone against the hostile god, Te Pare. He threw with all his force and skill. His gods heard him and guided his stone straight and true so that it struck Te Pare on the head just below the pole lashing with such force that the sennit braid broke and the god tumbled to the ground. A cry of horror broke from the fort...

maoris & polynesians - yep they sure do like to fight.