Archery: Longbows, recurve bows, and compound bows shooting broadhead arrows are permitted. No explosive or chemical devices may be attached to the arrow or broadhead. There are no minimum draw weights for bows or minimum diameter for broadheads. Arrows must be at least 18 inches long. Draw locks on compound bows are legal Crossbows are no... there is no qualifier as to what a broadhead is. The game wardon told me a broadhead is wider that a field point end of story. I ask can it be stone? He said it could be made from anything, bone, stone, metal, hard plastic. I am glad I live in iowa. Strange how a state can ban 10000 years of common practice