For the primitive Broadhead competition, the Broadheads can be made from metal, stone, bone, or any other natural material. The Broadhead point must be wide enough that it can not pass through a 7/8" diameter ring, and have at least two "cutting edges" not less than 3/4" long. Some competitors simply cut trade-style Broadhead points from a wide bandsaw blade. The cutting edges do not have to be razor sharp for this competition. In fact, it's probably better if the edges are not razor sharp.
Alan