Chapter 243: Leopard-2 fires

"Boom!" With the firing of the gunner, a huge shelling sound came.
In the barrel, the firing pin hit the steel-bottomed semi-combustible cartridge. The high-energy propellant in the cartridge was instantly fired. Inside the barrel, it burned fiercely to generate high-temperature and high-pressure gas.
For a tank gun, the more charge, the greater the energy emitted, and it also means that the pressure on the barrel will be greater. If the barrel cannot withstand it, it is the risk of blasting the chamber.
A gun barrel looks like steel, but it reflects the level of metal smelting in a country.
After ten years of turbulence, Han's metal smelting level has not made any progress. Just like the big steel smelting at the beginning, the output of steel is several billion tons, but high-quality steel has not.
Now, the equipment imported from Niu Country can already meet the needs of the gun barrel.
The first is electroslag remelting steel. As the name suggests, this technology uses electric current to melt the metal and re-smelt it. During the smelting process, the falls below and the high-quality steel ingot falls on it.
This is the first step in manufacturing high-quality barrels, which is advanced steel, and then the barrel process. The barrel self-tightening process is used to increase the density of the barrel and further improve the barrel’s pressure-bearing ability.
The last is the internal chromium plating, which increases the friction life.
The previous 59 tank guns were fired with more than 100 rounds, and the barrels were bald, while the imported L7 rifled guns had a barrel life of hundreds or even thousands of rounds, which is why people used this technology.
The current tank gun can easily withstand the existing chamber pressure. Under the huge pressure, the front warhead, driven by the cartridge, quickly accelerates forward.
If it is a rifled gun, it starts to rotate under the action of the rifling in the barrel. However, now it is a smooth-bore gun without any rifling inside. At the same time, it is also a newly developed type of projectile with a slender core Speeding under the drive of the dome.
Yes, it is thin and long.
The caliber of the tank gun is 120 mm, and the diameter of the bullet core is only 38 mm. This means that if there is only a bullet core, it will not be able to fill the barrel at all. If the barrel cannot be plugged, the cartridge just burned. The gas is wasted.
Therefore, on the outside of this type of armor-piercing projectile, there is a receptacle that matches the caliber of the artillery. In this way, the receptacle carries the core of the bullet and gallops through the barrel.
They were pushed out almost instantly.
As soon as it was pushed out, the hot flame inside followed out of the barrel. The high-temperature and high-pressure gas violently compressed the air outside, making a terrible shelling sound.
boom!
At the muzzle, a large fireball with a diameter of nearly one meter appeared. This large fireball quickly spread to the surroundings and became even larger. At the same time, above the fireball, a stream of black smoke evaporated.
The firing of the tank gun is so spectacular!
In the flames, the bullet core flew forward at a speed of 1,650 meters per second, and the bullet support on its body became two halves and flew away.
The so-called shelling refers to these two cartridges.
After leaving the barrel, the fell off, and it had completed its mission.
The slender bullet core, like an arrow, flies forward. At its tail, four small bomb wings were opened.
Ordinary artillery shells are stabilized by rotation, but the artillery shells flying out of this smoothbore gun cannot rotate at a high speed, so they need to be stabilized by the wing.
When I saw the flames on the opposite side, Ivanov was stunned. It was impossible. How could it be possible? This is simply beyond his level of knowledge.
Two thousand five hundred meters, at a distance of two thousand five hundred meters, the other party actually opened fire!
In contrast, Xiong Country’s tanks can hardly be hit by firing from a kilometer away! How is this possible? The opponent must be firing blindly.
Yes, that's it.
The other party just wants to bluff, if he can really hit the target at a distance of 2,500 meters, then he will blind himself!
Just when he swore this poisonous oath, the bullet core had already come with howling.
This distance takes less than two seconds, and when it is aiming, it has already estimated the lead. Anyway, the target is traveling at a constant speed, and the fire control system can accurately calculate it, even in real combat. After the opponent finds that his side is firing, the brakes still increase speed, and it takes time to react, and it can still hit a large extent.
With a huge speed, the bullet core hit a 59 tank in the front row. At the moment of impact, the whole tank trembled.
Hit, hit it unexpectedly?
Regardless of the small mass of the bullet core, its speed is very high. The huge speed brings huge energy. This is the same as a bullet hitting the human body and the person will be backed by the impact of the bullet. The tank is In such a collision, the entire body of the car shuddered.
At the same time, the bullet core began a head-to-head contest.
This kind of bullet core is a tungsten bullet core covered with a steel sleeve. During the impact, the bullet core begins to advance.
Blocking in front of it was the head of the 59 tank's turret, the thickest armor part, and the bullet core, like a wedge, plunged in.
In the process of penetration, the speed of the bullet core is also continuously decreasing. If the bullet core still does not penetrate when the speed is reduced to zero, then the armor penetration has failed. If the bullet core has been drilled while it still has speed Go in, and that is a successful armor piercing.
Therefore, the bullet cores are all slender.
Drilling a small hole is much easier than drilling a large hole. The previous armor-piercing projectiles were all of the same caliber. In the late World War II, the sub-caliber armor-piercing projectile was invented, and the armor-piercing ability immediately rose to a higher level. The meaning is that the core of the armor-piercing projectile is smaller than the caliber of the artillery, and it is similar to the current armor-piercing projectile.
At the same time, this is a head-to-head contest, and the bullet core must be made of the hardest metal! Tungsten alloy armor-piercing bullets are a common way.
At this time, as the bullet core began to drill holes at a huge speed, the temperature of the friction part exceeded thousands of degrees, and the armor of this part began to melt, forming iron chutes.
Then, the bullet is a loose, it has already got in!
Use the 120mm shelling armor-piercing projectile to hit 59 tanks. Are there any questions? As long as it is not flying by the turret in the shape of the bullet, the breakdown is a matter of minutes.
Moreover, after the breakdown, its storage speed is still three-quarters!
After all, people’s armor-piercing ability is 500 mm at the worst, and if you hit a turret of more than 100 mm, it’s simply a catch!
The direction of the warhead hardly changed, and it continued to move back.