Which is more lethal, the ancient "bow and arrow" or the modern "submachine gun"

Let's talk about the speed of ancient bows and arrows. The speed of ancient bows and arrows must be much slower than the bullets we use now. Everyone should know that ancient bows and arrows rely on human strength to complete the shooting distance, that is to say, the greater the strength, the more open the bow and arrow, the farther the shooting distance. Nowadays, mechanical guns rely on the impact of the bullet's back core to expand the powder and eject the bullet. It produces lethality, and the two sources of launch are different.

Although the shooting distance and speed of bows and arrows are slower than those of bullets fired by mechanical guns, the shooting quality of ancient bows and arrows is high. Why do you say that? Because the ancient arrow is made of sharp metal objects, it has good penetration and great power. The effective killing distance is about 150 meters, which is not inferior to the range and power of submachine guns. Why do you say that? You can look below.

The tension of ancient hand-held bows and arrows was about 85kg, and the range distance should be about 160m. You can shoot through two layers of cooked cowhide, which means you can shoot through a steel armor plate with a thickness of 5mm when standing at a place of 20 m. You can imagine how deadly this is.

Think about it, if you drop a bullet at an altitude of 30 meters, it may hurt people, but it will not be life-threatening. If you take a bow and arrow and drop it at a height of 30 meters, everyone who hits it will die. They are all metal products, and the bow and arrow heads are treated with sharp edges. The lethality should not be underestimated.