Did you notice that when you open the 15x scope, there is a small black dot at intervals?
Yes, these black dots are used for determining the range with the sniper rifle's scope.
If the enemy is within 100 meters, you can just aim with the crosshair. But if the enemy is 400 meters away, use the first black dot when aiming.
It may seem like you need to predict, but don’t worry. Did you notice there are a few horizontal lines below the 15x scope?
These horizontal lines are not for decoration; they are actually used for range estimation.
When the height of the object matches one of the horizontal lines, you can deduce the distance accordingly.
If you understand all this but still don’t know how to use the 15x scope, then it’s just a matter of luck.
Jiang Siming quickly figured out that the opponent was about 600 meters away. Without adjusting the crosshair accuracy, he only needed to lift the gun slightly below the first black dot, then decisively pulled the trigger!