HOW IT WORKS, PRINCIPLE BEHIND THE TANGENT SIGHT OF THE AKM You know there is a match behind the working of the tangent sight of the AKM. Let us dive into it, there are three parts of the trajectory of the any rifle projectile. They are called as First Zero, The Apex, Second Zero . Because the sight sit above to the axis of the bore and the barrel is rifle is slightly angled upward, the bullet travels in an arc twice. ·        First Zero: The short-range point (usually between 25 and 50 yards), depending on the caliber and scope height) where the bullet first crosses the line of sight while travelling upward. ·        The Apex: The highest point of the bullet’s arc, which occurs roughly halfway between the first and second zeros. ·        Second Zero: The longer-range point (often 100 to 200 yards) where the bullet drops back down through the line of sight. To determine exactly...