For safety reasons, Ma Cheng was more than 300 meters away from the test site, but he still felt a wave of air coming towards him. Ma Cheng saw a fire, and then a stream of black smoke rose into the sky, and the sound could be heard for several miles.

It is almost dark now. Although Beicheng is not a densely populated area, there are many farmers living there. Suddenly, such a loud noise came from Beicheng, which naturally attracted the attention of the garrison inspection department.

No matter what era, gunpowder is a prohibited item, not to mention that it was in Nanjing. The Beicheng Inspection Department quickly sent a team of 100 people to come. However, Ma Cheng's firearm workshop had approval from the Ministry of War and the Ministry of Works. The inspection department and the school who took the lead warned him and left after seeing the procedures in place.

At this time, Ma Cheng was taking the craftsmen to watch the power of the sky-bombing thunder. The sky-bombing thunder filled with gray gunpowder can no longer be called a sky-bombing thunder, but can be called a bomb. Ma Cheng came to the test site and saw a large pit on the ground that was half a meter deep and two meters wide, and a strong smell of gunpowder filled the surrounding air.

In addition to the craters on the ground, the unlucky test pieces were scattered all over the place. The two pigs were a little better. One was tied into a hedgehog by broken porcelain pieces, and they could not die anymore. The other one was not injured, but was spitting blood in one mouthful, probably shaking into internal injuries, and it seemed that they could not survive. The chickens were even more unlucky because they were too close to the explosion point and were completely restored to parts.

Ma Cheng looked at half a chicken butt a few meters away and said, "Wang Lin, how powerful do you think this new type of gunpowder is?"

Wang Lin has been working on gunpowder for a lifetime, and this is the first time he has seen the power of this perfect match gunpowder. When Ma Cheng asked, he bowed and said, "Second Master, this new gunpowder is too powerful, about three times larger than the gunpowder configured by the villain. If used to defend the city, it will definitely shock the enemy!"

Ma Cheng shook his head when he heard Wang Lin say this. Wang Lin's eyes are too short-sighted, why do you only think about defending the city? The real purpose of this kind of gunpowder is to be used on muskets and cannons. With this kind of gunpowder, the range of the musket will definitely be far beyond that of the same type.

"Okay, Ma Shun, write a document to report the new gunpowder to the Ministry of War, and the inventor said it was Wang Lin!"

Although the officialdom in the late Ming Dynasty was corrupt and incompetent, no matter what dynasty, the military merit was the most important. This new type of gunpowder would definitely bring benefits to Wang Lin, so Wang Lin quickly knelt down and thanked the second master for his grace.

This new type of gunpowder was completely completed by Ma Cheng alone, but Ma Cheng is the son of the chief assistant, so he can only take advantage of this kind of honor, so he can only take advantage of Wang Lin.

"Get up, Wang Lin, I will give you this little effort. Just serve me in the future. Second Master is very satisfied with this gunpowder experiment. Thank you for your hard work tonight and make some things. Second Master will use it tomorrow!"

Wang Lin immediately promised after hearing what Ma Cheng said, even if he didn't sleep at night, he would have to complete the task.

Ma Cheng's potassium nitrate was completely purified with nitrate soil, but in addition to nitrate soil, there was also a large amount of saltpeter in this gunpowder workshop. This is the best saltpeter transported from the northwest. Ma Cheng told Wang Lin not to use these saltpeters first. Ma Cheng had an important use to keep them, that is, to produce nitric acid.

nitric acid can be obtained by dry distillation of saltpeter, sulfuric acid can be obtained by dry distillation of pyrite, glycerin can be obtained by adding caustic soda, three parts of nitric acid and three parts of sulfuric acid and four parts of glycerin, and a simplified version of nitrified*glycerol. (Of course, it is not that simple to make nitrified*glycerol, but the novels are all made of gold fingers. Just take a look, don’t go into it in depth!)

Nitrifying *glycerol is dozens of times more powerful than gunpowder, but Ma Cheng does not intend to do it himself. Nitrifying *glycerol is very unsafe and can be detonated with a slight vibration, so let Wang Lin and the others do this.

Ma Cheng is short of everything now, but he is not short of people. Ma Cheng will never take risks in such a dangerous thing. It is the right way to find a few refugees to let them do it.

Because we will have to do weapons tests tomorrow, Ma Cheng did not go home at night, but lived in the workshop, and the two unlucky fat pigs were toothed for sacrifice. After dinner, Ma Cheng used his rest time to write down the production process of the simple nitrification*glycerol.

Ma Cheng has never done this kind of thing, and it is completely transplanted into the time travel novels I saw later. Ma Cheng is just a picture of the cat, so it is still unclear whether he can produce Ma Cheng. In fact, that new type of gunpowder has far exceeded the times. Later generations until Nobel invented the nitrified *glycerol fried * drug in 1860. This gray gunpowder has always been the main gunpowder of the British army, so using gunpowder from the 19th century can completely defeat the Qing cavalry in the 17th century.

That night, Wang Lin and more than a dozen gunpowder craftsmen worked all night and finally stored all the more than 200 kilograms of nitrate in stock into potassium nitrate. At the same time, due to the proficiency of the process, the purity of this batch of potassium nitrate was reached 90%, which had reached the peak of the Ming Dynasty craftsmanship.

Wang Lin used more than 20 kilograms of potassium nitrate extracted to produce more than 30 kilograms of gunpowder, waiting for Ma Cheng's experiment the next day.

The next day, Ma Cheng got up and finished his meal. He came to the test site with Ma Shun. Wang Lin had already been waiting here with a group of craftsmen.

Ma Cheng saw that there were all kinds of Ming army firearms, such as Thunder guns, three-eyed guns, bird guns, etc., and even a small Folang machine was brought in. This was Ma Cheng's first time in contact with the artillery of the Ming Dynasty. When he went over, he found that this Folang machine was made of bronze. Perhaps the iron material in Nanjing was not good, so the Weapon Bureau of the Ministry of Works used bronze to produce cannons.

Ma Cheng picked up a Lumi gun that he was most familiar with, skillfully loaded the lead bullet gunpowder, and stuffed a thick piece of paper into the muzzle to ensure that the gunpowder gas can completely act on the lead bullet.

Ma Cheng raised the loaded Lumi gun and then aimed at the target in the test site. Today, three wooden targets were set up on the test site, with distances of fifty meters, seventy meters and one hundred meters respectively. Each wooden target was equipped with a complete set of chain mail to simulate the most elite armored Baiyala in the Qing Dynasty.

Ma Cheng first aimed at the wooden target fifty meters. After pulling the trigger, the fuse ignites the gunpowder in the fire pool. Then the gun body trembled and the lead bullet was fired out. This time the charge was a new type of gunpowder, and the dosage was also standard three cents, so Ma Cheng clearly felt that the recoil was much greater than that of the old type of gunpowder.

The wooden target fifty meters is very close, and it is easy to see the lead bullet hit the target body. Someone took the wooden target and handed it over to Ma Cheng to watch. The new gunpowder is powerful. In addition to breaking through the chain mail in front, the chain mail behind it is penetrated through an inch thick wooden board. If this is an individual, it will basically not be alive.

Two layers of armor can be penetrated at a distance of fifty meters, and its power is very good. Ma Cheng nodded and started experimenting again. After dozens of guns shooting, the experimental data quickly came out. There is no problem in breaking through two layers of armor in fifty meters, and there is no problem in breaking through two layers of armor in seventy meters, but only one layer of armor can be penetrated at a distance of one hundred meters. As for Ma Cheng's distance at a distance of more than one hundred meters, the smoothbore rifle hell we use now can still maintain accuracy within one hundred meters, and it only depends on luck if it exceeds one hundred meters.

However, this power also made Ma Cheng very satisfied. You should know that the effective range of firearms in the Ming Dynasty was only 30 to 50 meters. Some shoddy gunpowder could not kill people at all, and could only cause a burst of fire to scare the horses.

The next step after testing the musket is to experiment with the Folang machine. The lead bullet of this Folang machine is the size of a fist, and the entire cannon is only 100 kilograms, which is very light. Ma Cheng experimented and the shooting distance with new gunpowder can reach 500 meters, and if old gunpowder is only 150 meters. Ma Cheng was also very satisfied with this data. The range of the Red Barbarian cannon in the Ming Dynasty was only three miles. You must know that that kind of thing is placed on the city wall and cannot move casually like this kind of cannon.

It was noon after the weapon test was completed. Ma Cheng said to craftsmen such as Ma Shun and Wang Lin: "It's very good. From now on, the gunpowder workshop will fully produce this new type of gunpowder. Ma Shun, you can recruit people and collect nitroso soil, and ensure the production of the gunpowder workshop as much as possible."

After Ma Cheng finished speaking, he took out the nitrification*glycerol production process written last night from his arms, and then said to Wang Lin: "Wang Lin, this is a new type of gunpowder, which is very powerful, but you must remember that this gunpowder is very unstable and must be safe. In addition, you must follow the procedures I wrote during the final processing. Do you have to be careless? "

Wang Lin had been working on gunpowder for a lifetime, so he naturally knew that this kind of thing was very dangerous, so he quickly promised that he would pay attention when he heard Ma Cheng say this.

Ma Cheng sighed and didn't know if he listened. In fact, this kind of nitroglycerin is not necessary at all. You can use new gunpowder to deal with the Qing cavalry. However, Ma Cheng's strength is too small now, and there is no possibility of winning against hundreds of thousands of cavalrymen in the Qing Dynasty. There is no way to pin his hopes on this weapon that transcends the times.

The work here at the workshop was basically over. The next step was to wait for the transformation of the steelmaking furnace. Ma Cheng told Ma Shun to send a letter to himself after the transformation of the steelmaking furnace was completed. Then Ma Cheng rode a horse and left Beicheng and returned to the Nancheng Army Camp.

Now, three thousand people have been recruited in the barracks one after another. Because of the in-depth training, the consumption of more than 100 taels of silver every day. Half of the ten thousand taels of silver allocated to Ma Shiying has used. Ma Cheng did not expect that the army would be so expensive. It seems that the ancients said that a cannon fired ten thousand taels of gold was not unreasonable.

Ma Cheng devoted himself to training in the next half month. Now the Weapon Bureau has sent two thousand Lumi guns, so Ma Cheng has begun to ask the soldiers to contact the muskets.

On June 21, Tianma Cheng was supervising the contact of soldiers. A messenger outside the camp came to say that a family member of the Ma Mansion came to find the general.

Ma Cheng thought something had happened at his home, but when someone came over to ask, he found out that Ma Shun had completed the renovation of the steelmaking furnace and asked Ma Cheng to go and start the furnace to refine the first furnace of steel.
Chapter completed!