Ye Fei stretched his finger into the hole and stirred it twice, it was not long enough to touch the captive in the armor.

At this time, the black bear and the others arrived one after another, and Ye Fei immediately ordered: "Quick, carry him back to the battleship!" ”

Several fighters hurriedly lowered the prisoner from the cross and flew back to the battleship with the corpse.

Untie the armor on the prisoner's body, and find that the front of the armor was pierced by an armor-piercing bullet with a thumb-thick hole, and the front of the prisoner's torso was shot There was also a wound of the same area, and after all the armor was taken off from the prisoner's body, it was found that the prisoner's back had been broken, and the prisoner's body was lifted up, and the metal fragments, broken bones and rotten flesh mixed together flowed out like a sparse noise, and then the broken internal organs also flowed out, and the wrist-thick intestines were full of holes, and a long section was dragged out of the wound.

"How so?" Cheng Hong's eyes widened in shock.

"Not surprising at all." Ye Fei said, "If you know what an armor-piercing bullet is, don't feel strange. ”

"What do you mean? Cheng Hong asked puzzled.

He is a military doctor, not a combatant, and has a certain understanding of common small arms, but the old antique of armor-piercing bullets says that he is a military doctor with the wrong major, and even most commandos don't know what it is.

"How so?" Facing a curious gaze, Ye Fei, who had just made up for it not long ago, began to try to explain, "Armor-piercing bullets are also called hollow-charge armor-piercing bullets, the warhead has a cavity, and when it hits the target, it penetrates the armor with a high-temperature and high-speed metal jet...... A metal jet is not a molten metal, but a metal that flows in an approximate liquid state under the action of kinetic energy...... Never mind. All you need to know is that this weapon ends up working with extremely fast metal. ”

Cheng Hong heard the cloud and mountain fog cover: "I understood the last sentence, do you mean that what metal jet penetrated the front of the armor and then penetrated the captive's body, but there was no longer the strength to penetrate the captive's back armor, so the metal jet rebounded under the obstruction of the back armor, shattering the skin and bones behind the captive?" ”

"yes, that's what I meant!" There weren't many goods in his stomach, and Ye Fei, who couldn't pour them out, nodded hurriedly.

There is a specialization in the art industry, this is too true, Cheng Hong is worthy of being engaged in medicine.

"Isn't it?" The black bear was stunned. "A tungsten steel warhead with a speed of 8,000 meters per second can't penetrate it. This armor-piercing bullet is more powerful than a tungsten steel bullet? ”

"More than 200 years ago, the speed of the metal jet could reach eight to nine kilometers per second, although we used this to copy according to the data, but all the new materials were used. I estimate that the speed of the metal jet will not be at least 15,000 kilometers per second. Ye Fei said.

After entering the cosmic age. The offensive capabilities of humans far outweigh the level of defense. Bulky tanks had to be withdrawn from the armament of various countries, and accordingly, all kinds of armor-piercing weapons disappeared from the armament of the army with the disgrace of the tanks.

The armor worn on the Atlanteans resembles a super turtle shell. People try their best but have nowhere to speak. Therefore, Ye Fei thought of the tanks that had long since withdrawn from the stage of war, so he specially asked Chi Hai to copy all kinds of famous and unknown armor-piercing weapons in history, and armor-piercing bullets were one of them.

"I'll go!" The black bear startled Ye Fei's words, "This is too scary, isn't it?" ”

"I don't know a lot about this thing, but I just know a rough idea, but I didn't expect it to work." Ye Fei was full of emotion.

It is said that when the armor-piercing bullet first appeared, the effect was very eye-catching, but with the continuous development of tank armor, especially composite armor, the armor-piercing shell became more and more powerless, and Ye Fei didn't understand when it was out of the equipment sequence in the end. He didn't need to figure it out anyway, he just needed to know that this thing could deal with the armor of the Atlanteans.

The black bear suddenly shook his head: "What's the matter?" There is no way to take the Atlanteans with any gamma laser infrasonic cannon, but this weapon that has long been eliminated has worked! ”

"There is no omnipotent high technology, only the most suitable weapons for the battlefield, as long as I can clean up the enemy, even if I am carried to the battlefield with a kitchen knife, it is no problem!" Ye Fei said with a laugh.

The research, which had not had much hope, had an unexpected harvest, and the gloom that had shrouded many days cleared up, and the whole person's mood became clearer.

Now Ye Fei is like a stupid person who is lazy and lazy, that is, he did not turn the soil or fertilize, he directly sprinkled a handful of seeds in the ground and left a qiē behind, but when he didn't want to harvest, he unexpectedly got a super bumper harvest.

"Boss, don't we get too happy? After all, this thing is a rocket warhead, can it be made into a single weapon? "Black bears don't know much about armor-piercing shells, but rockets have a diameter of 70 millimeters, so how can they be used as individual weapons?

Ye Fei said very optimistically: "Can it be made into a single weapon that can be studied slowly, it's much better than having no direction, right?" Chi Hai—"

"Here!" Excited, Chi Hai hurriedly ran over.

Ye Fei instructed earnestly: "After I go back, I will transfer manpower to specialize in the study of armor-piercing shells, the one I used just now is still a tandem warhead, go back and try again to see if the single warhead can penetrate the armor of the Atlanteans, and the miniaturization of the armor-piercing warhead should also be put on the agenda, it shouldn't be difficult to make a 50 mm shell, right?" It's just for mechs. In addition, it is best to study and study how small Cheng dù is ineffective, and it is best to use it for combat armor. ”

"Yes, I'll do it in a while, but ......," Chi Hai hesitated, "there's something I don't know if I should say or not." ”

", just say something." Ye Fei waved his arms heroically.

"That's right, the 50 mm rapid-fire gun equipped with the mecha is a traditional rifled gun, and it is not difficult to design the armor-piercing projectile to 50 mm, but the trouble is that when the rotating warhead hits the target, it will make the metal jet also rotate, reducing the power of armor piercing." Chi Hai said.

In order to reproduce weapons for a while, he gnawed through all the materials he could find, and he didn't dare to say that at least the more famous weapons in history have enough understanding, and he is definitely qualified to be a commentator in a military museum.

"Anything else?" Ye Fei was stunned, "Is there a way to solve it?" ”

"If you really can't do it, you can go straight to the missile, and there shouldn't be any technical difficulty in designing a missile gun for a mecha, right?" Out of nowhere, the black bear has a seemingly feasible idea.

Chi Hai said with a look of deep disapproval: "Captain Xiong's method is a solution, such a gun is not difficult, but every bullet is a missile, this cost is too high, it is better to directly place a certain number of missiles in the weapon compartment of the mecha." (To be continued......)