Does anyone know how much primitive South American arrows usually weight? South American arrows are known to be very long, 1,0-1,5 meters (3-5 feet), even longer (excluding Patagonia and some other regions). Arrowhead is bamboo, bone, etc., not metal. Arrow shaft material is one kind of reed.
I have read many books and articles, and none of those mentions nothing about arrow weight, only length, arrowhead, feather, etc. Even the best book, "Brazilian Indian archery" (Heath & Chiara 1977) says nothing about arrow weight.
So, who knows, real measurements?