Here's one that I have been working on. It's 64" long 1 1/4" wide at the center,1/2" wide tips, made of shagbark hickory. It has pretty fine growth rings, which I believe leads to weaker wood. So this bow took 2" of set, but draws 43# at 27". It's for a friend who wants to do very close range deer hunting. I think it would do it, but it's up to him to decide. I'm making another one also, and he gets to choose between them.
Here's the bow with stain on it. I just took fresh fallen walnut husks and rubbed on. 100% Primitive
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I am not an expert on this, but from what I have seen in books, there is one style that shows up all across the diverse area referred to as the Eastern Woodlands. It is the long, narrow bow, rectangular in cross section. I think of eastern woodlands more as a type of forest, with certain kinds of trees that grow tall and straight. So where ever hickory grows, or elm, for example, it probably made sense to make this style of bow, given the woodworking technology that was available. Of course there are also other styles and variations. But say that you need a bow fast, have stone tools and antler wedges to work with, and you find a recent-storm downed giant hickory tree. Hmmm??? I have even seen storm blasted trees with pre-split bow staves just standing there. Too bad the last time I saw one it was in a State Park.