Slingshot to hit the water inside the fish can hit how deep stinging fish

Slingshot fish effective range is far from 10 meters, within 10 meters or kill, more than 10 meters is able to hit, the killing power will not be too big. So within 10 meters, if you hit the right one, you basically can't get away.

Based on the principle of water refraction, as long as it is not vertically downward shooting, the target should aim at the lower part of the target. Simple reason: chopsticks inserted diagonally into the water, is to see the water part of the upturned. 45 degree angle underwater one meter, aiming to see the fish below the 15 centimeters, half a meter underwater, aiming at the fish under the body of the 0.8 centimeters, and then deeper is not necessary to consider.