Looking at the two people's surprised looks, Wu Hao explained with a smile: "Because most of the weight of the bullet is actually concentrated on the shell and propellant, the actual weight of the warhead is actually very light, and the size of the warhead is also very small.
, so even though the magazine sizes are similar, it can hold more bullets than traditional bullets.
Take the 5.8 mm small-caliber rifle bullet commonly used in our country. The weight of the entire bullet is 12.5 grams. Among them, the weight of the cartridge case is 6.25 grams, while the weight of the warhead is only 4.15 grams. The rest is
The weight to launch.
The weight of the warhead is equivalent to one-third of the original bullet. In other words, the weight of the three warheads reaches the weight of the warhead of a traditional bullet.
The weight of the warhead we use is actually about the same, and may even be lighter, only about 3.9 grams. In this way, based on the thirty-round capacity of a traditional rifle magazine, the thirty-round capacity in a traditional magazine
The bullet is 375 grams, and an ordinary magazine weighs about 300 grams. If a plastic magazine is used, it will be lighter, so the weight of the fully loaded magazine may reach 600 grams.
It’s about 700 grams.
As for our bullet, it only has 3.9 grams. Calculated based on the capacity of 120 rounds of bullets, the weight of all bullets is only 468 grams. Relatively speaking, the weight of our magazine is about the same as that of traditional magazines.
Calculated based on 300 grams, no, 400 grams, the total weight of a magazine is less than one kilogram. You know, the weight of a full magazine of the traditional Type 56 submachine gun, commonly known as the AK47
It has reached more than 900 grams, close to one kilogram. The weight of our fully loaded magazine is not as heavy as it, but our ammunition capacity is as high as 120 rounds. What kind of level is this."
At this point, Wu Hao glanced at the two of them, and then continued to explain: "In addition to being light in weight, the warhead of our bullet has a simple structure. Its overall structure is composed of two parts, which are the outermost steel shell.
It is composed of two parts: the lead core inside.
The reason for this design is that electromagnetic weapons need to rely on magnetic force to push, and the iron shell is easier to feel the magnetic force. As for why lead is added to it, it is mainly because the warhead can deform when designing the object, thereby increasing the lethality of the warhead.
If the main warheads are all made of steel, although the penetration power will be greatly improved, the lethality of the warhead will be very small. This may be like the 38 cap of the little devil back then, where the bullet pierced a hole in the body.
, but people don’t have much trouble.
That’s why we filled the steel warhead casing with lead, and engraved preset cracks into the steel warhead casing. When the warhead is concentrated on an object, it will deform under the action of a huge stopping force, and the steel casing will crack.
If opened, the lead core inside will explode, causing huge trauma in the object.
So don't think that its warhead is small, but in fact it is relatively powerful.
In addition, the cost of this steel-cased lead-filled bullet is also cheaper, not only eliminating the cost of copper-coated materials, but also eliminating the cost of cartridge cases and propellant. In addition to these, it
The production and manufacturing process of the bullet is also much cheaper than that of traditional bullets, because it only needs to produce this kind of warhead, and does not require the complicated whole process of producing a full bullet."
The reason why traditional bullets are not suitable for steel bullets is that steel bullets will have huge friction on the rifling of the barrel, which will seriously damage the rifling in the barrel. In addition, steel bullets have poor ductility due to the characteristics of the material.
It is strong, so it cannot fit the rifling, and its airtightness is not strong, so air leakage will occur when it is fired, resulting in the kinetic energy of the ammunition in the cartridge case not being fully applied to the warhead, which makes the range of the bullet include the ballistic trajectory.
seriously affected.
And electromagnetic guns like yours will not be affected by this. At this time, Pang Zhengqing raised his own question and said, this is also a question that puzzles him.
You must know that our country is seriously short of copper, and for a long time in our country's history, copper has been circulated in the market as the main casting material for currency, so it is actually a precious metal in our country, but it is relatively
It's just cheaper.
For a long time in history, copper has been used as various ritual vessels, wine vessels, and display vessels. In modern times, copper has played a huge role in economic construction, scientific research, and industrial manufacturing.
Therefore, our country's copper shortage has been in a tense state for a long time. In order to reduce the cost of bullets and reduce the crisis of copper shortage, our military researchers began to work on improving bullets. One of them
The important method is to use other materials to replace copper materials.
The first thing to be chosen was steel, so soon our iron-cased bullets appeared. The bullet casings were changed from pure copper to steel ones, which saved us a lot of copper materials.
, and also reduces the production and manufacturing costs of bullets.
Researchers even hoped to change the warheads to steel warheads, but after a series of experiments, they found that steel bullets have very fatal flaws.
These defects all come from the advantages or strengths of steel itself, which is that the hardness is too high. The steel cartridge case is not ductile, resulting in the cartridge case and the gun bore not being able to fit tightly, especially when the bullet is fired, there is no ductility.
The eggshell cannot be sealed together with the barrel case, causing the power generated in the barrel to be unable to concentrate forward on the warhead, thus losing a large amount of thrust. This will cause the bullet's range to be greatly affected. Compared with copper
The range of made-case bullets is much shorter. Because the bullet has a longer range, the trajectory will not be straight enough within the effective range, which will greatly affect the shooting accuracy of the bullet.
In addition, the friction coefficient of copper is much smaller than that of steel, and it is a widely used metal "lubricant". Therefore, copper cartridges are easier to withdraw from the chamber, while steel cartridges will easily jam, affecting continuous shooting.
Finally, copper has better thermal conductivity. We can see that the radiators of many electronic devices are now made of copper. The copper shell of the bullet will absorb a large amount of heat from the barrel when the shell is extracted, thus
Delaying the temperature rise in the gun bore is conducive to continuous shooting. Otherwise, if the temperature of the gun bore is too high, it is easy to misfire or even explode.
Of course, in the end, this problem was not too serious compared to its advantages, so in the end, after constant exploration by technicians, the outside of the steel cartridge case was plated with copper, which could increase its lubricity and reduce the occurrence of jamming.
