Just because it is facing your lease doesn't mean he is shooting deer on your side of the fence. If it was my property and you asked me to move it I wouldn't. But then again I would know that I wasn't shooting deer on your side of the fence. He may have it facing your lease to keep the sun from shining directly on him or is using the tree for cover if he is expecting the deer to come from behind him. And he may be a slob and shooting deer on your side of the fence.