Looking at the surprised looks of the two, Wu Hao explained with a smile: "Because most of the weight of the bullet is actually concentrated on the shell and propellant, the weight of the real 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 Launch the desired weight.
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 rounds of bullets in a traditional magazine are 375 grams, plus the weight of an ordinary magazine is about 300 grams. If plastic is used The magazine will be lighter, so the weight of the fully loaded magazine may reach about 600 to 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. Comparatively speaking, the weight of our magazine is almost the same as that of a traditional magazine. It is calculated based on 300 grams, no, 400 grams. The total weight of one magazine is less than one kilogram. You know, the weight of a full magazine of the traditional Type 56 submachine gun, commonly known as AK47, has reached more than 900 grams, which is 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. And the lead core inside is composed of two parts.
The reason for this design is that electromagnetic weapons need to rely on magnetic force to propel them, and iron casings are more likely to feel magnetic force. As for why lead is added to it, it is mainly so that the warhead can deform when designing the object, thereby increasing the lethality of the warhead.
If the main warhead is 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-year-old Gai of the little devil back then. The bullet pierced a hole in the body, but the person was fine.
That’s why we filled the steel bullet casing with lead and secretly carved preset cracks into the steel bullet casing. When the warhead is concentrated on an object, it will deform under the action of a huge stopping force, the steel shell will crack, and 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, its production and manufacturing process is also much cheaper than traditional bullets, because it only needs to produce this kind of warhead, and does not need 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, due to the characteristics of the material, the steel warhead is not very ductile, so it cannot fit the rifling, and its air tightness is not strong, so air leakage will occur when it is fired, resulting in the inside of the cartridge case The kinetic energy of the ammunition does not fully act on the warhead, which seriously affects the bullet's range, including its trajectory.
And your electromagnetic guns will not be affected by this? At this time, Pang Zhengqing raised his own question. This was also a question that puzzled 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 also been used as various ritual vessels, wine vessels, and display vessels. In modern times, copper plays a huge role in economic construction, scientific research, and industrial manufacturing.
Therefore, our country's copper shortage has been in a state of tension for a long time. At that time, in order to reduce the cost of bullets and reduce the crisis of copper shortage, our military researchers began to improve bullets. One of the important methods was to replace copper materials with other 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 manufacturing cost 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 its hardness is too high. The steel cartridge case is not very malleable, resulting in the cartridge case not being able to fit closely with the gun bore. Especially when the bullet is fired, the non-ductile eggshell cannot be sealed with the gun chamber carrying case, resulting in the leakage produced in the gun chamber. The power cannot be concentrated forward on the warhead, thus losing a lot of thrust. This will cause the bullet's range to be greatly affected, and the range is much shorter than that of copper-cased bullets. Because the bullet has a longer range, the trajectory will not be straight enough within the effective range, which will greatly affect the bullet's shooting accuracy.
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 many radiators of electronic equipment are now made of copper. The copper shell of the bullet will absorb a large amount of heat from the barrel when the cartridge case is extracted, thus delaying the temperature rise in the barrel, which is conducive to continuous shooting. Otherwise, if the temperature of the gun barrel is too high, it will easily 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.
(End of chapter)
