What is a bullet for?

It's very useful!

Between guns and bullets, it's really a layman's lookout, and an insider's doorway. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

The layman focuses on firearms with strange shapes, different performances, and very different uses, but insiders look at bullets used in firearms.

To put it simply, ammunition determines the extreme performance of a firearm.

No matter how sophisticated a firearm is, its performance cannot exceed the theoretical data of the ammunition used.

In fact, ammunition has become the main factor limiting the performance of firearms, the shortest plank, or the performance of firearms is about to reach the ceiling determined by ammunition.

Most typically, the U.S. military re-picked up rifles that fired 7.62 mm NATO cartridges.

The point is that the small-caliber bullets represented by the SS109 bullet have too many defects, and no matter how they are improved, it is difficult to meet the operational needs.

The U.S. military has not completely removed assault rifles such as the M4, simply because the cost of a complete rearmament is simply too great.

In the U.S. special forces, especially the elite units such as "Seals" and "Delta", high-power rifles such as HK417 and SCAR-H are already standard.

It's just that the 7.62mm NATO bullet is not perfect either, and there are still a lot of flaws.

Many years ago, the Americans came up with a 6.8 mm caliber bullet and marketed it to special forces, claiming that its performance was far better than that of the M193 bullet.

What Zhao Yu took out was a brand new bullet.

Bullet case made of brass with a firing center, no protrusions, and a bottle-shaped structure.

The warhead is fully armored and the internal structure is not visible.

The first impression of this bullet is that it is very powerful, and the cartridge case with a length of more than 60 millimeters and a diameter of about 12 millimeters can hold enough propellant.

Actually, it's just a sample.

The caliber is 6.6 mm, the shell is 62 mm long, 12.5 mm in diameter, the charge is 3.2 grams, the mass of the steel-core armor-clad warhead is 8.5 grams, and the mass of the full shell is 20.4 grams.

"How's the performance?"

"Theoretically, it can penetrate a high-hardness armor steel plate with a thickness of 10 millimeters at a distance of 500 meters, and the armor-piercing performance is 50 percent higher than that of the M993."

Wang Dong nodded slightly and let Zhao Yu continue.

"It's just a contingency, not the best solution."

Next, Zhao Yu spoke in detail.

In the beginning, he mainly made a fuss about the existing guns and ammunition, mainly to improve the warhead.

Obviously, the effect is not obvious.

Due to the limitations of the initial design, even the 7.62 mm caliber NATO bullet only improved the warhead, and the performance improvement was limited.

As for the 5.56 mm caliber NATO cartridge, there is less room for improvement.

Theoretically, a countersunk projectile with a liquid propellant is ideal.

However, liquid propellants are not mature enough, many technical problems have not been solved, and there is no possibility of large-scale application in the short term.

The next best option is a countersunk with a common propellant.

The technical problem basically does not exist, and the mass production process can be solved, and the problem lies in the matching firearm, that is, the firearm must be redesigned with countersunk ammunition.

Even with enough people and money, it can take years to design an entirely new firearm.

Restricted by this, Zhao Yu could only adopt the most direct method, that is, to increase the elastic performance of the gun by increasing the propellant and increasing the mass of the warhead.

The biggest advantage of this is that it can be modified with existing firearms.

Even if a new firearm is designed, it can be completed in a few months, because the principle of automaticity has not changed, and other aspects can be borrowed from existing guns.

"Of course, different types of warheads can be designed according to practical needs. For example, replacing steel cores with sub-caliber tungsten alloy cores is expected to improve armor-piercing performance by 50 percent. If some adjustments are made to the shape of the warhead, the ballistic performance can be greatly improved. The steel core structure wrapped in semi-armor lead can more than double the killing effect of personnel, reaching the level of dummy bullets. ”

"Questions?"

"Standard." Zhao Yu sighed and said, "This is a brand new gun cartridge, which is completely different from the existing gun cartridge, and it will definitely not be adopted by the armies of Western countries." Even if it is promoted in the civilian market, it will not work very well, after all, there are too many similar bullets. ”

Wang Dong nodded slightly, indicating that he understood what Zhao Yu meant.

"Actually, that's the key reason why we should seize the opportunity." "We don't expect this kind of gun to be used by the U.S. or any other country's military, but for the special forces of Saudi Arabia to use it, the advertising is extraordinary." ”

"Maybe it's an instant hit." Zhao Yu added.

"The question is, will Saudi Arabia buy a brand new kind of ammunition?" Luo Qing asked.

"I was able to get this opportunity."

When Musharraf said this, everyone else looked at him.

"If Prince Mohammed is going to redress the special forces and purchase a standard firearm with better performance, I am sure that I will get a ticket."

Wang Dong didn't speak, just looked at Musharraf.

"More than 10 years ago, he studied in the United States, and I studied in the United States. At that time, he was just an ordinary prince, and I was just an ordinary officer. Because we often talk about topics that everyone is interested in, we have a good relationship. ”

"How good?" Luo Qing asked for Wang Dong.

"At least I can see him." Musharraf pursed his lips and said, "Of course, all I can get is a chance." ”

"What's the use of that?"

Wang Dong pressed his hand, stopped Luo Qing's words, and said: "Obviously, Mura was able to win a chance, and Zhao Yu designed a gun bullet with excellent performance. Then there are two things to do, one is to determine if this opportunity really exists, and the other is to come up with a firearm that can be bought by the prince who is not short of money with real money, preferably a gun family, and the performance must be excellent. ”

"If nothing else, I'll rush over tomorrow." Musharraf immediately agreed.

"Find out the situation as soon as possible, that is, whether Prince Mohammed will spend money to change the outfit of the special forces."

Musharraf nodded, indicating that he understood what Wang Dong meant.

"Leave the guns to me." Zhao Yu let out a long breath and said, "Within a month, I will be able to design a new rifle." ”

"With modularity, preferably like SCAR, other types of ammunition can be used by changing the bolt, feeder and barrel. In addition, be bold in terms of materials, with performance as the first goal, then reliability and versatility, and finally cost. ”

Zhao Yu nodded and agreed, without saying anything.

This is a gun that is going to be sold to the prince of the local tyrant, and it is also used to equip elite special forces, and the price is obviously not a priority.

"Also, patents and trademarks must be done as soon as possible." Wang Dong looked at Serena. "Besides, the factory has to make arrangements."

Serena only nodded, it was her job.

"Any other opinions? If not, it's decided at this point. After Mura figured out the situation, we had to do our best to get the deal done. ”