Just after the early morning of June 21, Bai Liyan's convoy arrived at the south gate of Guangxin, this time in a pickup truck with 400 trucks, loaded with medicines, arms supplies, equipment, canned food, anti-chemical equipment, and medical personnel.

Jiang Gan, Chen Yunfeng, and Sikong Nan went to the south gate to greet each other, and Jiang Qian breathed a sigh of relief when he saw Bai Liyan coming in person.

The fighting in the past month has made him feel like he is on pins and needles, and it is even more dangerous than the siege of the Black Turban Army back then, and he is afraid that the armpit people will attack the land and cause hundreds of thousands of riots, and the consequences will be unimaginable.

After a brief greeting, Bailiyan took Jiang Rong and Jiang Qian and others to the ancestral tomb to sweep the tomb and pay tribute to Jiang Min and Luo Songting. Then the soldiers divided into three routes, Jiang Qian and Jiang Rong went to the city to visit their mother, Chen Yunfeng organized manpower to carry and unload materials, and Bailiyan followed Sikong Nan to the prisoner of war camp thirty miles southwest of Guangxin.

In this battle, a total of 4,729 armpit men were captured, and 37 large and small warships were captured, and the number of drowned cannot be counted. The Xian army was killed and missing, as well as 4,767 people who were killed in battle, and more than 8,000 people were seriously and lightly wounded, equivalent to one-fifth of the total number of naval personnel. And the ships lost a hundred, or seventy percent. In other words, after a battle, the navy of the Xianguo country basically collapsed.

When they came to the outside of the prisoner of war camp, the inner and outer three layers were surrounded by barbed wire, the ground was paved with thistles, trenches were dug, and the piles were all I-beams to prevent impact.

The first time he saw the armpit man, Bai Liyan was deeply shocked, this was the first time he had seen a higher creature with eyes on the front of his armpits. So their clothes are also very strange, they have an eyelid under their armpits, and baseball-sized eyes look at humans vigilantly, while their olive-shaped eyes on the bridge of their foreheads and noses are closed.

When he met Jiang Jie, he was testing the seized weapons at the shooting range outside the camp, which was a test at the request of Bai Liyan.

Bai Liyan asked, looking at the dazzling array of weapons on the table

"How's it going, what's the discovery?"

"Lieutenant Marshal Qi, the last general found their ammunition to be very strange."

As the words fell, Jiang Jie took out a huge bullet case, not so much a bullet shell as an anti-aircraft machine gun shell.

The armpit human body is amazingly burly, so their weapons are very large compared to humans, so this bullet has a caliber of at least fourteen millimeters, and the recoil is very large, but for them, it is indeed much smaller.

Bai Liyan took the huge bullet case and looked at it several times, the structure of the bullet case was still the same as that of human technology, using copper shell and fire, but for some reason, it was covered with a layer of black paint. At first, she didn't see anything Mingtang, but when she saw the pit left by the primer impact again, Bailiyan was shocked, because normally the pit left by the firing pin hitting the primer would not be blackened.

He seemed to realize something, and pointed to the flames

"You mean that?"

"Yes, the armpit man's bullet uses black powder to fire the projectile, but their primer is completely different from ours."

"Hiss......" Bai Liyan felt incredible.

It's not because black powder can't be used as a cartridge shell projectile, it's okay.

There is no technical problem with black powder making metal cartridge case propellant, but there are four drawbacks, the first is that the kinetic energy is too small, so the projectile launch distance is limited and the power is weak, but the axillary man increases the diameter of the cartridge case, making it charge more.

The second is severe corrosion of the chamber. Third, gunpowder remains, so black powder fixed metal shell ammunition is not suitable for use as semi-automatic and automatic weapons, only suitable for trap rifles and rotary bolt-action rifles. Hit a shot and pack a shot, or hit a shot and pull a shot.

Before the wordless safety gunpowder, after the appearance of the cartridge case, black powder was the main gunpowder of the cartridge case, until the nitrocellulose was passivated by ether, and the full popularization of safe smokeless gunpowder appeared.

Fourth, there is smoke, basically three or four shots, the smoke is not good, so the black powder was eventually replaced by the safe gunpowder after the passivation of nitrocellulose.

However, the chemical formula was largely accidental, and all the gunpowder and explosives in the early days were not formulated according to theory, but were discovered by accident, so it is not surprising that the axillary people still used black powder as a propellant.

Strangely, their primer was neither potassium chlorate nor mercury, nor phosphide, less sensitive, but magnesium powder.

Hearing this, Bai Liyan was taken aback.

"What, magnesium powder!"

"Exactly, the last general ordered the Lincheng Chemical Laboratory to test the primer of their bullet, which is magnesium powder."

"It is almost impossible for magnesium powder to be ignited by impact, how can an axillary person use magnesium powder as a primer."

"It's right on their firing pin." As he spoke, Jiang Jie took out a firing pin and continued: "This kind of firing pin, almost every axillary gun is equipped with more than twenty firing pins. ”

"Could it be that the firing pin is a consumable!"

According to the physical and chemical results of the Lincheng Chemical Laboratory, this kind of firing pin is an alloy of key elements and ferric tetroxide, which produces a strong current after hitting the metal copper, and the current ablation of the primer copper sheet will produce high temperatures, igniting magnesium powder, thereby igniting the black powder. In order to prevent the current from injuring people, the armpit man applied a layer of insulating paint to the outside of the bullet. ”

The key element is a new metal element discovered first on this planet, which does not coincide with the known elements on the earth, so it is an element that Baili Yan cannot recognize and judge in advance, and Yongxing City first discovered the key element in 643.

The key element is a general reserve of non-rare earth elements, non-toxic and harmless, the compound is also non-toxic and harmless, the pure key element is light green, and after forming an alloy with ferric tetroxide, that is, magnetic iron in a certain proportion, it will produce the physical characteristics of complete demagnetization, but the magnetism of ferric tetroxide is not simply disappearing, but is transformed by the key element, and will be violently discharged after hitting copper, lead and other metals to produce sparks.

While the temperature required to ignite magnesium powder is very low and the sensitivity to ignition source and current is high, black powder has almost no reaction to electric current, so black powder can only be ignited by igniting magnesium powder.

However, the earth does not have a key element, so the technical path of human beings is to use gunpowder, which is highly sensitive to impact, as a primer to achieve the launch of fixed metal-shelled ammunition.

This means that from now on, there are two very different technical paths for fixed metal-shelled ammunition.

Since the firing pin is consumed with each impact, the design of the axillary man rear loading gun is also very unique, and in order to facilitate the replacement of the firing pin, a special exit mechanism is designed.

In addition to the breech guns, a total of six types of guns and ammunition were found to be mounted on the breech of the guns, but there were as many as 20 kinds of models, and the ammunition was even more varied. According to Jiang Jie's confession, the armpit people captured this time wore different uniforms, and the wide variety of firearms was not unrelated to the country.

Among them are rifles with flap breeches, and they are double-barreled and quadruple-barreled, capable of holding four or two rounds. Then there are the multi-barreled shotguns, which resemble a beehive.

Then there is the restriction of the structure of the rotary locking rifle, which can only be loaded with one round at a time. Then there is the rotary locking bolt-action rifle, which has a magazine, but can only press three rounds. It's not because it can't be made bigger, but because the armpit man's ammunition is too large, and the black powder is too much, and after three rounds, the gunpowder residue will block the locking structure and magazine, so after three rounds, it is not loaded, but dumped with powder residue.

The fifth structure is the pepper pistol, which, despite being a breech-loading fixed gun, has no ammunition supply and ammunition storage structure, and can only be loaded in one round, so it can hold twelve bullets in one breath. Due to the huge size of the axillary people, it doesn't really matter how much the tube holds, but if it is a human, it is not used at all. However, the caliber of the pistols is large and small, and the weight is heavy and light, and the small-caliber ones should be issued to the dwarves.

The fifth is a pump-action rifle, which has a very strange design.

The pump-driven structure is usually used for shotguns and small-caliber pistol bullets, because the length-diameter ratio of rifle bullets is too large, while the length-diameter ratio of shotguns and small-caliber pistol bullets is short, and the pointed bullet and round-head bullet are not conducive to the transmission of pump-driven structure, so it is easy to cause jamming, and the bullet supply is not smooth. Shotguns, on the other hand, are flat-headed cylinders, which do not have this problem.

The armpit people were very clever, and because of the large diameter of their warheads and cartridges, they put a wooden armor on the warheads to keep them cylindrical, so that they could use the pump-driven structure to supply bombs smoothly. And it can be loaded with six rounds at a time, which is simply a crazy design.

The corresponding to the pump-driven bomb feeding structure is the lever feed, and the lever feed method is suitable for almost all types of bombs, because the lever feeds the bomb using the tail flange hook shell of the cartridge case to feed the bomb, rather than the pump-driven pressure bomb, so it is more reasonable than the pump-driven structure.

But the problem is that the lever feed structure needs to push the trigger retainer with your fingers to load, while the armpit gun is clamped under the armpit, loaded from the tail of the gun, and the gun body is supported by hand, so it is impossible to push the lever retainer by hand.

Of course, this can be achieved through mechanical improvements, or moving the feed structure forward, but it will seriously change their usage habits and reduce the reliability of the lever feed. At the same time, the lever is more likely to accumulate black powder residue and reduce reliability, while the pumping structure is more reliable.

In addition, most of their guns need to be caught under the armpit to fire before they can be aimed with their eyes, so without exception, they are fed behind the gun, and loading is not as convenient as human weapons.

Although in Bai Liyan's view, their weapons do not have much merit, it is undeniable that the gap between the two sides in weapon technology is not large, and their physiology has an absolute advantage, which largely offsets the suppressive force brought by automated weapons. At the same time, they were more industrialized and more armed, and the Xian country could not compete with them head-on in numbers.

Human beings are hit in the torso by this caliber bullet, the torso is basically gone, the rescue can save life in time, if it is not time, it will be a life, if it hits the organs, sorry, it will definitely not be saved.

After looking at all the firearms, Bai Liyan got the relevant data of Jiang Jie's continuous tests for several days. Almost as expected, the power was very amazing, due to the increase in the diameter of the cartridge, the charge of black powder also increased sharply, the kinetic energy of the projectile was very sufficient, the rifle could still penetrate half a foot thick masonry at a distance of 600 meters, and a one-foot earthen wall could not resist it at all.

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