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【Today's fourth update is here, please collect it, please recommend it~~~~]

With the current technology of Fushan Soicang Workshop, it is still unknown when the barrel can be made to meet the design needs. At the same time, since the barrel is a rolling problem, the range and accuracy are definitely not as good as that of the barrel made by mechanically. At the same time, the probability of a blow-off is still relatively high. However, it doesn't matter. The Minni rifle in history has a maximum range of 918 meters, and can basically hit the target accurately within 550 meters. Even if all indicators are completely reduced by half, the maximum range is only 500 meters, and accurate shooting within a range of 300 meters is an epoch-making weapon.

After explaining the principle of rifling and the characteristics of the Minnie bomb, the remaining technology will be no more complex. The flintlock rifle was found in the Ming Dynasty itself, and the difficulty of the process is not complicated. The key is to be reluctant to leave the cost. Flint is not considered a scarce material, and as long as you search carefully, you can still find it. The same is true for lead ore. If it really doesn't work, use cork or graphite instead.

The problem of bayonets is easier to solve. The existing triangular spines can be used on the barrel after being modified. The processing of the boot is a little difficult, but it is not very difficult. The butt stock and handguard are not difficult at all. What is Laoshan most lacking? Wood! Elm, elm, oak, fir, and walnut with excellent texture, as much as you want.

"In that case, this Minnie rifle is really feasible."

After Zhou Shiwen and Luo Dashan carefully discussed the manufacturing of rifles with paper, they made a model of the Minnie bomb. In the end, the two were convinced that Zhang Zhun's suggestion was theoretically feasible. As for the craftsmanship, it was their business scope.

Other craftsmen also fully questioned the Minnie rifle, questioned every detail, and then discussed the solution to the problem together. Everyone thought of many details and solved all of them. However, this is still theoretical. Whether it can be made can be tested by yourself.

"Start work now!"

Zhang Zhun did what he said.

Time cannot be delayed.

In this complex environment in the late Ming Dynasty, the earlier the Minnie rifle, the better it is.

Brigadier Zhang named the domestic Minnie rifle "Huben Gun".

I borrow three thousand tigers and regain my vast Chinese!

The specifications of the Hu Ben gun final determined by Zhang Zhun: the barrel length is 36 inches (about 1200 mm), the barrel diameter is 0.36 inches (about 12 mm), and the weight of the Minnie bullet is 6 cents (about 20 grams). The bayonet used for the matching is 380 mm in length, modified from a triangular spine. The Hu Ben gun does not have a bayonet length of 1520 mm, and the bayonet length is 1900 mm. The length data of the Hu Ben gun is basically similar to the famous British smoothbore gun "Brown Beth".

In order to coordinate the various elements of the production of Hu Ben guns, Zhang Zhun established the Equipment Department, with Zhou Shiwen and Luo Dashan as the supervisor. Zhang Zhun gave Zhou Shiwen and Luo Dashan 1,500 taels of silver at one time as the start-up capital of Hu Ben guns. If the funds are not enough, you can continue to ask Zhang Zhun. According to the calculations of the three, under the premise of relatively mature technology, the cost of each Hu Ben gun should be about twenty taels of silver, which is about the price of a pure steel spear. The same price is much more powerful than the spear, which shows the importance of technological invention.

After confirming the production of the Hu Ben Gun, the first batch of high-quality steel produced by Li Fenglai and others was soon sent to the craftsman workshop. Zhou Shiwen, Luo Dashan and others immediately became busy to make the first batch of gun barrels. Other craftsmen also gathered to conquer the roadblock of rifles. Even after repeated arguments, there were still not many people who were confident about rifles.

Sure enough, even though he understood the principle of rifling and Zhang Zhun was personally instructing him, the craftsmen still felt a very strong resistance when making rifling. It was feasible in theory, but in fact, as long as there was a little error, the rifling could not be connected. The rifling that could not be connected could not be effective at all. The dozens of kilograms of steel plates sent by Li Fenglai were basically destroyed. Fortunately, as the technology became more and more proficient, the errors became smaller and larger, and the hope became larger and larger. Otherwise, everyone's confidence would be seriously hit.

Almost five days later, the first rifled barrel was finally produced. The rifle was indeed completely matched. Zhang Zhun used this barrel for testing, and its strength was enough for hand-to-hand combat. However, whether such a barrel can be used in actual combat must go through multiple tests.

At the same time, the production of Minnie bombs is also in progress. Compared with rifling, the manufacturing of Minnie bombs is much simpler. As for flint firing, some craftsmen solved technical problems. Originally, there were flintlock rifles themselves in the Ming Dynasty, and some craftsmen knew the principle of firing, and just copied them. The production of granular gunpowder was a bit troublesome at the beginning, but later it was solved by smart craftsmen. "Ji Xiao Xin Shu" and "Wu Bei Zhi" are both recorded. In addition, some older craftsmen also knew the general production method. When they recall it carefully, they tried and tested it repeatedly, and the granular gunpowder came out.

The butt stocks, guards, straps, sightseeing, and sightseeing are also not technically difficult. In fact, many of the Ming army's muskets, even cannons, were based on sightseeing, sightseeing, and detailed scales, and the shooting angle can be adjusted according to the scale. These were all improved by Xu Guangqi. Unfortunately, he passed away last year. When it comes to Xu Guangqi, people in later generations admitted that this person was the number one scientist in the Ming Dynasty, but unfortunately he has not been highly valued and was depressed. Otherwise, the Ming army's firearms and equipment would definitely be even more powerful.

Soon, all the components needed for the first Hu Ben gun were equipped.

Zhou Shiwen carefully assembled all the components to form the first Hu Ben gun in history. After repeated inspections, Zhou Shiwen sent the Minni ammunition into the barrel with a push rod, and then sprinkled granular gunpowder into the gunpowder pool. The flint was also ready. At this point, the launch work was completed.

"Let's start!"

Zhang Zhun said in a deep voice.

Zhou Shiwen and others used ropes to fix the Hu Ben gun and tied it to the trigger. The purpose of this was of course to prevent the blow-off of the chamber. After all, this was the first sample gun, and all the components were produced for the first time. No one could guarantee whether it would blow up the chamber and give everyone a warning. In case the blow-off was not a joke, and of course there was no need for everyone to take risks.

About 100 meters in front of the Huben Gun, a huge fir board was treed. The thickness of the fir board was three inches (about 100 mm). According to calculations, if the Huben Gun was shooting in a straight line, it should be hit on the wooden board. There is a circle in the center of the wooden board and a red heart in the middle. Hitting the red center means that the accuracy is extremely high. Hitting it inside the circle means that the accuracy is OK. If it is hit outside the circle or even the wooden board is not hit, it means that the accuracy is really bad. The thickness of the wooden board is used to calculate the power of the Minnie bullet.

"put!"

Zhang Zhun pulled the rope himself.

"Bang!"

A loud bang came.

Everyone's eardrums were slight shock.

A stream of black smoke came out, and the air was immediately filled with the smell of choking gunpowder.

After the gunshot, Zhang Zhun immediately ran to the front of the fir board to check.

Good guy, just in the heart.

There was only a small hole left in the heart, but the Minnie bullet disappeared.

The happy craftsmen hurriedly cut open the fir board. They found that the Minnie bullet was hidden on the back of the fir board, less than half an inch (about 17 mm) away from the extrusion. The bullet itself had completely deformed, like a twisted twist. Such power was really terrifying. The craftsmen could not find any words to describe what they saw in front of them for a while, and could only keep breathing in their hearts. A terrible thought came out in everyone's mind: What will happen if this shot hits a person?

"Continue the experiment."

Zhang Zhun was the same surprise inside, but he was silent on the surface.

The craftsmen are now impressed by Zhang Zhun, so they naturally listened without saying a word and followed with no choice. Everyone ran back immediately and continued to conduct the experiment. They skillfully pushed the bomb into the chamber and put the launching medicine. Everything was ready.

"Bang!"

The second launch of the Hu Ben gun.

The second result was as excellent as the first time. The Minnie bullet continued to hit the heart, and at the same time penetrated into the fir board for two and a half inches. This result made everyone feel extremely happy. If every shot had such a level, the Hu Ben gun could be mass-produced and equipped with a guard.

However, disappointingly, from the third shot, the Minnie bullet began to have obvious deviations, not hitting the red center, but only hitting the circle outside. The further back, the deviation became larger and the distance deeper into the wooden board became shallower, indicating that the power was getting weaker and weaker. By the tenth shot, the Minnie bullet could no longer hit the wooden board, and I don’t know where it flew. Zhang Zhun and others checked and summarized, and found that the rifle in the barrel had almost been flattened.

The problem eventually appears on the barrel.

The test proves that there is no problem with the principle and the rifling is the key, but the quality is still the key.

After only ten shots, the rifled rifle became a smoothbore rifle. Of course, such quality cannot be mass-produced. Even if Zhang Zhun’s requirements are not high, he must at least meet the needs of a battle? With daily training, if a barrel cannot be accurately shot fifty times, it will not be put into use on a large scale. Even if twenty taels of silver are not much, it is still money!

"Continue to test!"

Zhang Zhun said expressionlessly.

So, everyone continued to load the Hu Ben gun and continued to shoot.

"Bang bang bang!"

Gunshots are constantly coming and gunfire is everywhere.

There is no way to see where the bullet hits. What Zhang Zhun wants to test is the probability of the barrel blowing of the barrel. For musketeers, blowing up the barrel is always a huge psychological shadow. Novice's fear of the musket itself is even more powerful than the fear of the enemy. Let's not talk about anything else, as long as the problem of blowing up the barrel is better solved and the resistance to promoting the use of muskets will be reduced by half.

Surprisingly, the barrel of this gun never exploded. It was fired until the fiftieth round, but the barrel of the barrel still did not explode. In this regard, it is definitely a miracle. Of course, this is related to the advanced principles of the Minnie rifle. The chamber pressure was greatly reduced, and the possibility of the chamber of the explosion was naturally greatly reduced. In the end, the barrel was completely scrapped when it was shot for the 89th time.

The subsequent tests are sufficient for the performance of the barrel. The key is how to ensure the quality of the rifle and cannot be smoothed in such a short time. The craftsmen unanimously agreed that to solve this problem, we must start from three aspects: one is the quality of steel; one is the depth of the rifle; and the other is the process of the Minnie bomb. Only by considering the three aspects in a comprehensive manner and working together to improve can the life of the barrel be quickly improved.

From ten to fifty times, there is still a lot of room for improvement.

If it can be improved to more than one hundred times, it will be even more perfect.

Of course, if the quality is better and the barrel life is more than 200 times, Zhang Zhun will laugh in his dreams.
Chapter completed!