In addition to the warehouse compound in the county, the other stronghold of Chuanzhong is on the seaside, where the ship ran aground. Pang Yu mainly worked here during this period. This architect who used to just draw drawings on the computer has been working hard in the past few days.

Fully experiencing the "thrill" of grasping everything from design to construction - he and another graduate of Shanghai Tongji Civil Structure major cooperated with each other and led 23 men from Class 3 and Class 4 of Team A to complete the project within two days.

A simple camp was planned next to the beach where the ship ran aground. There was no time to build a house, so a few sheds were built with bamboo and wood to prevent everyone from sleeping in the open at night.

Of course, the most important task of the seaside personnel is to secure the ship as soon as possible and get this 3,000-ton giant back into the sea. To this end, most of the labor force of the two teams A and B were sent to the seaside, and more than 80 people dug four or five times in a row.

A large pit was dug around the hull of the ship. With the help of the midnight tide, dozens of ropes and tows finally allowed the "Qionghai 207" to float on the water again.

Everyone cheered the day the ship was launched, because it meant they could escape from here at any time. Although other places may not be better than here, having strategic mobility makes people feel more at ease.

The next step is to store enough food and fresh water on the ship, but this job does not require many people. The six classes of Team B led by Master Chef Li in the kitchen - the cooking class can completely complete this work.

With a retreat secured, the next focus of work shifted to strengthening the team's combat effectiveness. Wang Ruobin had made a lot of firearms in the past few days, but the number of matching bullets was seriously insufficient.

With a gun but no ammunition, a musket is worse than a fire stick. Fortunately, Wang Ruobin's small workshop has a set of tools for making bullets, including lead blocks, empty bullet cases, and mercury fluoride used as primers.

When we were in the city, the shells of the bullets fired were recovered afterwards, and the warheads and shells were all solved. The only troublesome thing was the propellant.

The members of the arsenal held several meetings. There were quite a few chemistry experts in this time-traveling team. Everyone put forward various suggestions. Finally, after discussion, there were two most practical and feasible ways:

One is to make traditional black fire yao. The optimal ratio is 75% **, 15% charcoal, and 10% sulfur. After evenly mixed, it becomes the oldest fire yao in China. Its advantages are simple preparation and good properties.

It is stable and the raw materials are easy to obtain - just go to the toilet, pigsty and other places to scrape the nitrate-containing soil. I found sulfur ready-made in the warehouse and made my own charcoal. The disadvantage is that it is less powerful.

Another suggestion is to make guncotton: obtain sulfuric acid from pyrite and sulfur - replace the nitric acid with sulfuric acid - soak the skimmed cotton in nitrate-sulfur mixed acid, and then take it out to dry - you can create a powerful

The explosive power of zha guncotton is equivalent to four times that of ordinary black gunpowder, and the guncotton burns very fully, with almost no burning residue. If used as propellant, the gun bore will be very clean.

However, the disadvantage of guncotton is also its power. The explosion is too powerful and damages the barrel. The most terrible thing is that it is extremely unstable. A slightly violent shaking may cause an explosion. During the production, transportation and use processes

All are prone to accidents.

After weighing the pros and cons, everyone finally decided to make black fire yao and reload a batch of bullets to ensure the team's armament. Guncotton can be made again when conditions mature and can be used as propellant for artillery and grenades in the future.

Once a decision is made, it must be implemented in detail. Soon, under the leadership of several chemical experts, most members of the Chuanzhong began a vigorous campaign in and outside Lingao County - cleaning toilets.

Scrape soil from toilet side walls, pig pens, cattle pens, old courtyard wall bases, cliffs, caves and the ground that is not easily washed by rain, crush it and grind it finely, put it into a large pot with plant ash in a ratio of 8:1, and heat it until

Boil at about 75 degrees Celsius. Then pour out the solution and filter, repeat several times. Use the potassium ions in the plant ash to separate the nitrates in the soil to obtain a nitrate solution, heat and evaporate, and obtain relatively pure ** crystals through the crystallization method. Then

Mix it with carbon powder and sulfur powder in proportion with water, dry it in the shade and grind it into fine powder, and finally use a roller to polish the surface to make granular black fire yao. Compared with traditional powdered fire yao

Yao, particle fire Yao burns faster, has higher explosive power, is stable in nature and is not prone to nitrate and sulfur separation, has reduced water absorption after surface polishing, and is less likely to be affected by moisture. It can be used as a propellant for modern firearms.

The whole set of principles and production processes are not too complicated, but the operation is extremely cumbersome. And no one in all the time-traveling teams has actually done this kind of thing. Even Wang Ruobin, when he makes his own earth and fire yao, he always goes to the store to buy it.

The finished product is perfect, I have never had to scrape off the walls and boil the soil and saltpeter.

For a whole week, the stench at the seaside stronghold was so strong that if you put the soil scraped from places like the toilet pig pen and boil it in a big pot, the smell would certainly not be better. Fortunately, the strong wind at the seaside has dispersed a lot of it, otherwise I'm afraid it wouldn't have smelled better.

When the fire is made, people will be stunned.

It failed many times and wasted a lot of materials. In the end, only a small bucket of black granular material was obtained. Everyone in the arsenal watched eagerly as Engineer Xu weighed the portion with a scale and poured the black powder into it.

An empty cartridge case, primed, loaded with a warhead using a machine... and finally handed over to Tang Jian's hands.

Tang Jian took the shiny new bullet, glanced at it briefly, then put it into the 56 semi-automatic rifle at hand, loaded it, aimed at the wooden target in front, and fired. There was a crisp sound and a thick white color came out from the muzzle.

cigarette.

There were cheers on the beach. It was a good sign that the first homemade bullet was fired, but Tang Jian was not satisfied. He shook his head while checking the barrel of the gun:

"There is too much smoke and the barrel of the gun gets dirty easily. It seems that more maintenance will be required in the future."

Then he walked to the target to check the penetration and deflection, but this time he didn't say anything. It seems that apart from the smoke being bigger and the burning residue being more, the homemade bullets are no different from ordinary bullets in other aspects.

.This is the best, so you don’t have to make too many adjustments when learning shooting skills.

After that, they made several other types of bullets, including Type 54 pistol bullets, double-barreled shotgun bullets, and large shotguns specifically for homemade shotguns. Among them, Wang Ruobin also made some special types of bullets for the Type 54 pistol bullets.

change.

He used an electric drill to drill a small hole in the warhead, dropped a drop of mercury, and then sealed it with molten lead. Seeing this process, Xu Gaogong, Xie Xi and others all turned pale.

"Xiao Wang, do you know that the Geneva International Convention strictly prohibits the manufacture and use of dum bombs!"

Xu Hui asked with a livid face, while Wang Ruobin looked to the side innocently. One hand reached over and took the DAM projectile from his hand.

"I asked him to do it."

Wang Haiyang, the captain of Team B, weighed the dummy bullet in his palm, then sullenly pushed the bullet into the magazine in his hand that looked like a May 4th gun.

"Pistol bullets don't have a stopping effect, and the pistols we currently equip most are pistols. So I request that all May 4th bullets be modified to increase the lethality as much as possible."

"You can't use dummy bullets either. People hit by this thing will never be saved! Captain Tang, look..."

After all, he is a regular military worker, and Xu Hui pays great attention to these rules. He looked to the side with a pleading look. Tang Jian has always given people the impression that he is very principled.

However, it is obvious that the weight of so-called international conventions in the eyes of intellectuals and in the eyes of soldiers is completely different - Tang Jian just shook his head disapprovingly.

"In this environment, why are we talking about international conventions?"

Not only Tang Jian, but also Xie Xi, Lao Ma, and even the nerd Wu Nanhai showed disapproval on their faces, but the only one who supported XCMG was an engineering technician.

"We may not care about international conventions, but we must consider our own safety."

Pang Yu stood up.

"Because these imitation May 4th guns have weak firepower, they are all given to personnel with no military experience. Including me, most of us have never fired a gun in our lives. Wearing pistols is more to strengthen our courage.

.Once it comes time to use a gun, the chance of hitting yourself or your companions is probably higher than hitting the enemy!"

"Yes, yes, the accidental injury rate of pistols is already high. What's more, all the people who use pistols now are novices. If they are accidentally injured by dummy bullets, they will definitely die!"

Xu Hui immediately found a breakthrough and insisted on her opinion, while everyone else fell into deep thought.

The final result of the discussion was to suspend the DAMization of the May 4th pistol bullets. However, Wang Haiyang still insisted that Wang Ruobin make a few bullets, paint them with red paint, and carry them with him for later use.

"I feel something is not right lately, and I always feel that something will happen." Wang Haiyang explained his stubbornness this way, "My premonitions are always very accurate."

Wang Haiyang was a young man who was usually taciturn, so no one took him seriously at the time. But sure enough, just two days later, something happened.
Chapter completed!