The bow seems to 1-shot you no matter where you are hit, it could be the head, toe, arm, or the shin. I think it should change to something like if it hits an area of where your lungs or heart is, it is a insta kill, same with the head, everything else not. Arms and legs 30-50, lower torso and neck is 75 dsmage, but it could apply a bleeding effect for 2 damage every second for 5 seconds then it is stopped, it would be stopped early by standing near a medpack.