Not the text, popular science chapter!

(Some readers say that the text introduces hard military knowledge, which is very watery, and it is really uncomfortable to say that I cheat on the number of words, so let's list it separately.)

It will be like this in the future, and the readers who like it can click in to see it, learn some military knowledge, and refuse to be a military novice from now on.

If you don't like it, you can skip it, and it won't affect your reading. )

……

There are many lethal attributes of bullets, and the destructive killing that acts on humans is usually summarized into two types - penetrating force (carrying force) and stopping force (inhibition force).

The bullet has a strong penetrating force, only hitting a hole, and the end effect is sometimes lower.

Just like the 38-type rifle of the foot basin chicken in World War II, the bullet uses a full-power bullet, with a long range, fast speed, and strong penetration, and a shot can neatly penetrate people, and the bullet can fly far away from the body, without dragging mud and water at all.

That is, only one pair of piercing holes is left, and the bullet will not roll over the cavity, and will not take away a large piece of meat when leaving the body, and the whole process is very smooth.

The destructive power is far from ideal!

In some books, movies and television, many anti-Japanese fighters in our army were shot several times, and they were able to fight bravely for a long time without hitting their heads and hearts, which was ridiculed by many netizens as a divine drama.

In fact, everyone is mistaken, in this regard, it is not actually a divine drama, but after being shot, it can really fight for so long.

Who made the 38 big cover too penetrating force, and the excess power only hit a small pair of eye holes.

It takes a long time to bleed to death.

This is like the familiar game of pumping paper at the bottom of the bottle, as long as the pumping speed is fast enough and the power is strong enough, the bottle pressed on the top of the paper will not move.

The whole process is very smooth and does not affect the side objects.

But if you pump too slowly, or replace the paper with a wool cloth with more friction, and the force is strong enough, it will cause a large piece of mud and water to fall down.

Bring the paper into the bullet, the bottle is the human body, that is, take away a large piece of meat.

Of course, in the case of strong penetration, the stronger the penetration, the better, and sufficient armor-piercing ability is indispensable on the battlefield.

The 38 cover is only designed without taking into account the problem that the human body is "not hard enough", and the pursuit of a longer range and stronger penetration has led to a decrease in the lethality to people.

So how can we increase the destructive power of people and achieve the goal of killing the enemy with one shot?

This brings us to the "stopping force"!

Stopping force refers to the effectiveness of the warhead to incapacitate the target after hitting it.

The stronger the stopping force, the faster the target loses mobility, and the weaker the stopping force, the slower the target loses mobility.

Under the premise of the same charge and the bullet order, the bullet can be lengthened and the head is sharper, etc., which can obtain higher penetration and flight speed, that is, the penetration will be stronger.

This is a design element of an armor-piercing projectile!

(Geling: A unit of weight usually used for bullets, the weight of one grain is equivalent to a grain of barley.) )

The purpose of making "blunt-headed bullets", flowering bullets, and empty-pointed bullets, shortening the warheads, and increasing the material, as well as the abandonment of full-power bullets with mature technology and the special development of intermediate power bullets for the "magic gun" AK47, are all aimed at increasing the "stopping force".

For example, it's like a needle and a hammer!

The penetration of the needle is definitely stronger, but no matter how strong it is, it can only pierce a hole, and the penetration of the hammer is not good, but a hammer can break your leg.

Switching to the bullet and the human body, large-caliber blunt bullets, heavy-head bullets, and empty-tip bullets have no streamlined tip and are too heavy to cause insufficient penetration, but have strong kinetic energy.

When it touches the human body, the penetration is insufficient and it cannot penetrate smoothly into the body, and then it penetrates from the other side, and it will rely on strong kinetic energy to smash open the skin and drill into the human body.

As soon as they enter the human body, these warheads that break in with the main "stopping force" do not have a streamlined bullet body, and they will lose their balance and roll when they rub against the muscles.

With the blessing of powerful kinetic energy, the warhead rolls up, and it is terrible.

The warhead, which rotates itself due to rifling, and the irregular rotation of this unbalanced rotation, will double the rotation to form a centrifugal force, creating a terrifying cavity effect.

Tear off all the flesh around the warhead, and when you run out of your body, you will drag a large piece of the belt meat.

The peanut-sized bullet hole enters, and a scar the size of a bowl explodes in the back, which is the end effect of the stopping force, that is, the fatal wound caused by the rotating cavity.

And if you don't drill out of the body, the shang hai of people will be even more terrifying.

The warhead with double happiness is like a headless fly that goes crazy and will run around in your body, destroying the internal organs of the body on a large scale.

Although it has been documented that someone was shot in the buttocks, and the bullet also ran out of the shoulder.

But this kind of turning technique is too good for warheads, just a few more exaggerated examples, and even if the warhead finally comes out, the body has been completely destroyed.

The tearing trauma caused by the stopping force on the body will soon make a normal person lose all the ability to move.

There is a high chance of dying on the spot!

However, in today's era when body armor and bulletproof inserts have been popularized to every individual soldier's equipment, the pursuit of the ability to stop people with a gun is not a demand of the army, but more for police firearms.

The spears used by soldiers seem to be stronger, but in fact, most of them are harmful to the human body, but they are not very cruel.

And the police short firearm that doesn't look good pursues the stopping power of one shot to make criminals lose their ability to resist, and the destructive power to the human body is even more terrifying.

For example, the Bald Eagle Army was replaced with a 9mm caliber M9, and the .45 large-caliber M1911 pistol that was eliminated has always been loved by the police.

Pistols that are also sought after by the police, as well as various large-caliber revolvers, are common in Hollywood blockbusters.