Chapter 202

Considering that the collection of information takes time, the rabbits are not in a hurry to ask Yang Hengjun to send the false image to the mountain depression.

Generally speaking, it is normal for a city of this size to take a day or two to figure out the pattern.

For example, when Yu Lian first arrived in chixian City, it took nearly a day to collect information - this was the time consumption when the animal tide was approaching and many merchants and residents in the city didn't go out.

It's normal to spend five or six days on tasks like Yang Hengjun, which need to inquire about specific information and have a wide range of categories.

Anyway, according to Yang Hengjun, the time limit given to him by the Mo family is a big Mo day, that is, 168 hours.

Therefore, the headquarters plans to let him go to the mountain depression in three or four days, which should be the most appropriate time consumption.

While Mr. 91 rabbit was busy with video shooting.

It is located in the sergeant base more than 20 kilometers away from chixian city.

Lin Li and Lin Ziming are following a chubby scientific research expert towards a shooting range.

The expert is a medium-sized man with a thinner waist than Zeng Gucheng. His two eyebrows are extremely thick, some similar to the strong eyebrows in the girl with a soft voice.

So he looked very smiling and very kind.

But in fact, hidden under this smile is a killing spirit that makes countless foreign enemies afraid.

This killing spirit did not come from Tang pin's chubby body, but from his research results.

Yes, he is a famous local weapons expert and one of the absolute authorities on firearms, Tang pin.

He once participated in the design and R & D of Type 95 gun family and made great contributions to the weapons of rabbits. In recent years, due to the pressure across the sea, he began to focus on the research of bullet trajectory.

By the way, the 59 changes we talk about every day are due to this person, and the ballistic design of the main gun is made by him.

Tang pin came to Da Mo world at the same time as another academician Hua Jun in the camp, but the situation of his team is quite different from that of Hua Jun's armor research team (now the defense talisman research team).

Hua Jun's research team has made continuous achievements after arriving at the Da Mo world. They have cracked the first-order body shield and optimized the psionic shield. At the same time, they have also developed the seal escape launcher according to the first-order seal escape symbol. Recently, some branch studies have also made achievements.

Hua Jun's research group is one of the most fruitful and contributing groups in the camp.

If there were no psionic shield and first-order Dun Fu, it would be many times more difficult to capture in the battle of xiaolianzishan, and the casualties would definitely increase by a large margin.

Even whether the core layer will start this war is not certain.

Therefore, during this period of time, Hua Jun has a high reputation in the camp. In the words of the rice circle, it is a proper top flow giegiegie.

But Tang pin's team is different.

Although they arrived in Da Mo world with Huajun team, they had hardly made any sound until today and had been doing scientific research.

Even if the consumables records of each laboratory were not reviewed and signed every two or three days, Lin Li almost forgot that there was such a team in the camp.

It's not that Lin Li is so snobbish and only values the teams with good results, but because the work in the camp is so busy that sometimes he unknowingly forgets those little transparent people.

However, today's situation seems a little different. Lin Li has a hunch that Tang pin may have made a new breakthrough in a certain field - still an extremely important one.

Seeing approaching the shooting range, Lin Li became more and more curious and couldn't help asking:

"Academician Tang, has your team made a breakthrough in weapons?"

Tang pin still looks happy, but the front teeth that he had been reluctant to reveal were opened:

"Yes, we have just developed a new weapon, or a new bullet."

When Lin Li heard the speech, he immediately looked right:

"What bullet?"

Tang pin didn't stop at his feet. He stretched out his hand and took out a white cloth from his chest pocket.

Then he took a deep breath, opened the white cloth slowly, and saw a silver bullet much larger than an ordinary bullet lying quietly on it:

"That's it... 12.7 mm psionic armor piercing bullet."

Seeing that Lin Li didn't seem to fully understand, Lin Ziming added:

"12.7mm, it's a sniper gun bullet."

When Lin Li heard the speech, he immediately stopped breathing.

Although he is not a weapons expert, his major does not consider smashing people with biological bones, and there is no intersection with weapons, he knows a concept very well:

Sniper gun is a fixed click killing weapon. Its killing effect on single body is much greater than that of rifle submachine gun!

Then Lin Li wanted to ask some questions, but Tang pin shut up happily.

I can't help it. Those engaged in weapon research and development are like this. They are very tight lipped.

Then the three resumed hundreds of steps and finally came to the shooting range of the military base.

At this time, the shooting range has been strictly cordoned off, and there is only one gun on the gun storage platform.

This gun is a little familiar. After all, it looks so special that you won't forget it once:

Model js-05 sniper gun, the first sniper in Asia.

When Lin Li first saw the gun, he had to go back more than two months ago. At that time, he brought back a benchmarking report between DA Mo Jie and local weapons to Qin Zhendong.

Js-05 sniper gun is the most penetrating gun except shell. It can almost break through the external protection of second-order monsters, that is, some practitioners in the early and middle stages of foundation construction.

Further up, it can't help. Rabbits can only rely on various shells to increase the kill limit.

"The reason why a gun has an upper limit is very simple - first, its bullet weight is insufficient, but its initial velocity is limited. In short, it is lack of kinetic energy."

At this time, Tang pin gently stroked the body of js05 and explained to Lin Li:

"The weight of the bullet is limited by the volume of the bullet itself, even if the steel core, lead lined copper is increased by armor.

The exit speed is provided by gunpowder. At the same time, due to the limitation of the gun chamber, the fastest sniper bullet at present has an initial speed of 800-1000ms. "

What Tang pin said is a well understood concept, that is, e = 12mv ^ 2.

As for the initial velocity mentioned by Tang pin... That is, the high-temperature and high-pressure gas pushes the projectile in the closed pipe on one side. Within a period of time after the gunpowder is fully burned, the gas velocity gradually decreases, while the speed of the live projectile gradually increases until the two are equal. At this time, the projectile reaches the maximum speed and leaves the muzzle.

After introducing the basic concept, Tang pin took js05 off the butt of the gun. The load of 12 kg made his shoulder sink obviously. It looked like holding a watermelon:

"Our improved 12.7mm psionic armor piercing sniper bullet can make the bullet accelerate twice in the air.

At the same time, it can also give the warhead self sharpening effect to maintain a good shape of the penetrator, so as to achieve adiabatic shear fracture and finally break armour. "

It seems that Lin Li and Lin Ziming find it difficult to understand this paragraph. Tang pin continues:

"Two, the self sharpening effect can be understood literally as the self sharpening effect, that is, the warhead of this bullet can constantly degenerate and peel off, always exposing the solid and hard part in the core and moving forward.

The impact of normal bullets and even armor piercing bullets is a real frontal collision, so the warhead will be compressed after the collision.

If you don't understand, go back to the camp and try to poke a thicker sponge with a pencil, and then it's easy to understand by looking at its tip. The pencil is the effect of its own pencil sharpener. "

Lin Li nodded thoughtfully and said:

"I seem to understand a little, but academician Tang, how did you do this?"

Tang pin raised two fingers and explained to him:

"First, we have made innovations in the material of bullets, using some strategic grade tungsten alloy.

The melting point of this alloy is low. At the high temperature of impact, the tungsten alloy will continue to liquefy and peel at high temperature. At the same time, it will decompose in a hierarchical plane after being subjected to pressure, but the hardness of the tip is very high.

In other words, it will become sharper and sharper, and the penetration effect will be better and better until it completely penetrates or loses kinetic energy and stops.

This kind of property is somewhat similar to poor glaze crystal, but the pollution and radiation of that material are too high, we can't use it anyway.

As for the second point... That is, we added a tiny warhead in the second half of the bullet. "

"Warhead?"

During this time, there were many people in charge of the camp. As the general director of the camp, he learned a lot about weapons, especially some basic ammunition concepts. Therefore, he immediately asked:

"That's the part behind the bullet body? But isn't the explosive loaded in the warhead?"

"That's the warhead of the shell, and the drug load is basically in the kilogram level. Our armour piercing warhead is different from them. It records a two-way acceleration array."

Tang pin took apart the tail of the bullet while talking, revealing a little thing similar to a button battery, and introduced:

"Two-way acceleration array" the so-called two-way acceleration array refers to a strong acceleration array that applies thrust horizontally to the right and a weak force array that applies thrust horizontally downward.

The driving force of the former is more than 7400 times that of the latter.

The strong acceleration array is like the secondary ignition of a missile. It gives the bullet faster speed and stronger penetration during flight.

As for the weak force push assist array, it is for the influence in the vertical direction to make the bullet have a more stable trajectory as a whole, so as to accurately hit the target. "

As Tang pin said.

The strong acceleration array is inspired by the first-order light talisman previously discovered by Hua Jun, which can make objects move faster in the forward direction. For example, people can run as fast as Western journalists.

This talisman was improved by Tang pin's team and optimized into a small version of the acceleration array, so that it can instantly increase the firing speed of bullets.

This array is not difficult to operate. In a sense, microcarving recording is not even black technology.

What really makes Tang pin's team spend a lot of time is the weak force array that horizontally exerts downward thrust.

The trajectory of a bullet is a very complex thing, involving a lot of principles. You can't even get started in a few years.

However, there is a basic concept that should spread widely, that is, the trajectory of the bullet is a parabola.

Yes, of course.

In actual combat, the trajectory of the bullet is not a simple horizontal horizontal throwing motion, but an oblique upward parabolic trajectory. It is just a metaphor according to the horizontal throwing for convenience of understanding.

Little known.

If the speed of the horizontal parabola is higher in the horizontal direction, the object will eventually fly farther - this can be seen intuitively only by pushing coins outward with different forces at the corner of the table.

Therefore, once the bullet accelerates horizontally, the kinetic energy is large, yes, but it will fly over the target and become a spray of the art of human body tracing.

More complicated, if the bullet accelerates during flight, its trajectory will be disorderly like Planck's hair, which is very difficult to locate and describe.

Therefore, after several studies, Tang pin's team spent more than a month continuously conducting ballistic simulation.

Finally, after paying more than two million electricity bills and more hair, they finally developed such a micro weak force array.

There is a super small technology switch connection between this array and strong acceleration array. The logic of the two is very simple:

Once the horizontal velocity of the bullet reaches a certain threshold, it will be activated.

After activation, this weak force array will provide a downward push force, so that the bullet has a small but combined downward acceleration, so as to fine tune the trajectory, so as to speed up the bullet's landing and hit the target.

If you want to increase the range of bullets, you can remove this weak force array and install another tactical guide rail for guided firing.

Then Tang pin handed Lin Li a form with detailed data on it. It was thick enough:

"Team Lin, according to our optimization, the maximum speed of this 12.7mm psionic armor piercing sniper bullet is no longer the initial speed, but the instantaneous speed when the bullet flies to 0.113 seconds. This peak can reach 4700m seconds, and the warhead's payload is 21.2g.

Of course, the penetration kinetic energy of a bullet is not only related to speed, but also related to mass. Therefore, although this bullet has a fast speed, the current penetration kinetic energy is also relatively limited.

After all, the speed of other shells or ballistics may be several orders of magnitude worse than or even worse, but the ammunition load of their warheads is recorded in kilograms.

After deducting the damping coefficient, contact area and collision time, some shells are not as powerful as them, but some armor piercing shells are still more powerful than them.

However, this does not mean that the 12.7mm psionic bullet is useless. Its concealment and speed are over there. The single kill success rate in the range is many times higher than that of armor piercing bullet.

For example, at present, the most cost-effective bullet is a bullet with a warhead specification of 24.3 g. although its peak speed can only reach 4100 MS, its total penetration kinetic energy can reach 16977.3 joules after deducting air resistance. "

Lin Li frowned slightly when he heard the speech:

"Wait, academician Tang, the kinetic energy of this bullet is only 16... 17000 joules. Well, that's 17 kilojoules?

But I remember that the flame of the second-order monster is more than 1000 kilojoules. There is so much difference between the two... Is there a mistake? "

Tang Ying shook her head. Knowing that Lin Li had fallen into a typical misunderstanding, she smiled and explained:

"Team Lin, the calculation concept of armor piercing is the category of stress problem, that is, in addition to the initial velocity, we should also consider the problems of contact surface and contact time, and the difference between kinetic energy and momentum.

The figure of 17 kilojoules seems to be hundreds of times different from the more than 1000 kilojoules of demon flame, but the difference between the direct contact area of the two is more than a thousand times?

The core contact surface of the 12.7mm psionic armor piercing projectile is only 0.11cm2.

Before our gun came out, the world's most famous Barrett was only 2687 joules, that is, 2000 joules of armor piercing kinetic energy. "(to explain the defense bar, Bartley's muzzle kinetic energy is known as 30000 joules, but muzzle kinetic energy = bullet kinetic energy + gun kinetic energy + gas kinetic energy + gun sound energy, so it can't be benchmarked.)

At this time, Lin Ziming, who was always silent, suddenly raised his hand and asked:

"Academician Tang, I almost understand the principle, but I have a question

How do you make bullets reach this speed in flight? What kind of primer can do this? "

Lin Ziming's question is very sharp, because the flight time of the bullet is very short. It is absolutely difficult to get a second acceleration in this time.

This technology is not exaggerated to be comparable to nuclear fusion. After all, the standard concept of nuclear insurance is explosion in one millionth of a second, and the acceleration process of bullet flight is at most one third of a second in two or three hundred, and one fifth of a second in the sky. It is not difficult to do with current scientific and technological means.

However, if we can do it, there are a lot of detonators required by those scientific and technological means.

At least according to Lin Ziming's cognition, there is no primer that can increase the bullet momentum eight times the size of a button battery, not even a liquid primer.

Tang pin did not speak this time. Instead, she unscrewed the warhead with her thumb and handed it forward:

"Guess what this is?"

Lin Li and Li Li looked forward and saw some small white particles scattered in the warhead.

To tell the truth, Lin Li's first reaction when he saw these particles was alum, but soon he denied the speculation.

At the same time, a flash of lightning flashed through his mind, and his lips became faintly trembling:

"A lot of energy, a lot of energy, is this... Monster crystal?!"

"Yes, it's the monster crystal!"

Tang pin gave him a thumbs up and said with a sigh:

"According to our research, Reiki crystal will provide a lot of energy at the moment of gasification - the energy of Da Mo world is conserved, that is, from the reverse point of view, the solidification of Reiki also needs to consume a lot of energy.

This energy belongs to β Type energy, that is, the classification that can only be observed and cannot be used temporarily, because their eosta surface is uncertain - that is, the seventh plane of crystals, and similar crystals exist on the earth.

So far, we can only apply it to the psionic bullet on a very small scale. More than 3mg will lead to its disorder, that is, it will not be gasified after more than 3mg.

Even if they are grouped by measurement and then gathered together across the equipment, the minimum spacing is two meters, which may involve a certain micro state, that is, the penetration property similar to neutrinos.

In short, it is an aggregate similar to many local micro characters. At present, the physics team is studying other applications of monster crystal. At this stage, our 12.7mm psionic armor piercing bullet is the only mature achievement. "

Lin Li is not a molecular expert, so he doesn't have a clear understanding of what Tang pin said. He is more curious about another thing:

"Academician Tang, what level of monster or practitioner can a 12.7mm psionic armor piercing bullet kill?"

Tang pin turned over the report in front of him, handed him one page and said:

"According to our actual combat detection, the limit that this armor piercing projectile can kill is

At the beginning of the third stage, that is, the first and second floors of the Dan territory are marked, and the other party can't hide within a kilometer.

Because their divine perception feedback can't make the body respond so quickly.

But it's hard to say about 2000 meters.

Practitioners above the eighth floor of the foundation can basically escape. The death rate below the eighth floor is about 85%, but this is several times the effect of guns before us. "

Lin Li nodded slightly when he heard the speech, and an excitement appeared in his eyes.

As Tang pin said, although the rabbits' guns could kill the practitioners who built the sixth floor of the foundation, the initial speed of that bullet was only more than 800 meters per second, one fifth of that of today's new bullet.

Therefore, in addition to the practitioners trapped in a specific area, the original bullet can only stably kill the practitioners who build one or two floors of the foundation within 500 meters. If they encounter extreme defense, they may not be hit.

Within 200 meters, it can kill the practitioners who build the sixth floor of the foundation, but for the practitioners, the sniper gun within 200 meters is very weak - either the other party is killed by the close fire artillery, or he rushes into the position first, causing a wave of huge casualties before he dies.

In either case, the original sniper gun did not work.

You can use, but there are more useful and convenient things than you.

However, this psionic armor piercing bullet is different. With a peak speed of 4100ms within a kilometer, it can kill almost any cultivator or monster within the third level. This improvement is more than several times?

Then Lin Li looked at Lin Ziming and said:

"Colonel Lin, how's it going? Are you hot eyed? Do you want to have one?"

Although Tang pin didn't say it directly, he took Lin Li and Lin Li directly to the shooting range instead of the laboratory to see the data today. The potential meaning has been very clear.

This also proves Tang pin's confidence in the gun and the new 12.7mm psionic armor piercing bullet.

Hearing Lin Li's words, Lin Ziming's face showed a trace of expectation.

Soldiers, who doesn't love knives and guns?

In fact, he was a little impatient during Tang pin's introduction of guns. If he couldn't keep it in gta5, he would... Cough.

Tang pin obviously saw Lin Ziming's urgency and handed him the gun with a smile:

"Colonel Lin, hold on. It's more than 20 kilograms."

Lin Ziming carefully took over the js05 and bumped it on his chest. Although he had used many sniper guns, he started js05 for the first time in the West:

"Good guy, it's really not light."

Then, under the guidance of Tang pin, he stuffed the bullet into the calibration and walked from the gun storage platform to the test platform in the shooting range.

Since the problem of building density does not need to be considered, the shooting range of the military base is designed to be very open, with a diameter of nearly three kilometers and complete functions.

this moment.

On a high platform one kilometer away from the test platform, there is the remains of a monster, which is in the early stage of the third order.

Although the dead monsters have no aura to protect their bodies, their bones are many times stronger than their body surface defense.

When everything was ready, Lin Li took the gun to the target.

As the captain of the special combat brigade, he was very proficient in this kind of gun. When he was ready, he aimed at the target and pulled the trigger.

Bang——

Js05 without silencing equipment roared. The powerful recoil force made Lin Ziming, who is now the second level of Qi practice, unable to hold on and couldn't help but retreat two or three steps.

When he recovered, the monster skeleton a kilometer away had been shattered by the armor piercing power explosion

Lin Li was stunned for a few seconds. He suddenly turned his head and asked Tang pin:

"Academician Tang, how many rounds of this psionic armor piercing bullet can a monster crystal make?"

Tang pin thought for a moment and said:

"About 200 hair. After all, the quality of monster crystal itself is not heavy. Moreover, its interior is not all Reiki crystal. In addition, there are other ingredients."

"A monster crystal of a third-order monster can make two hundred 12.7mm psionic armor piercing bullets, and one armor piercing bullet can kill a third-order monster......"

Lin Li looked at Lin Ziming in a low voice, and their eyes lit up at the same time.