I'm going to disagree with you guy's on this I'm pretty sure it's an arrow shaft. My reasoning is take a straight edge of paper or card and align it to both sides of the shaft. It's perfectly in-line with each other can't say I've ever seen a stick that straight before. But wondering if it's been stuck with this arrow behind the head in between the hide and muscle? If you get this buck let us know. Very interesting. Good luck.