On the second day after Zhu Jin served as the deputy of the Propaganda Bureau, Wang Gongju came with another good news that the fourth disciple Zhao Doumi had a new invention.

Zhu Shun took the man of the iron tower, followed by four sedan chair men, and rode a Liaodong horse to Wang Gong Bureau.

When I came to the shooting range of the gun factory, there were puffs of white smoke on the shooting range, and the air was filled with the smell of gunsmoke.

Zhao Doumi sat in the shed drinking tea, and the students of the Beijing Normal University Hall not far away were excitedly holding a musket to test the gun.

"8 rings! Zhen played 8 rings! ”

"8 rings? Look below. ”

"Haha, I missed the target."

The sound of muskets was mixed with the frolicking of the students of the Beijing Normal University, and the shooting range was particularly lively.

Zhu Shun followed the cement road of the shooting range and came to the vicinity of the shed, and Zhao Doumi, who was drinking tea slowly, got up to greet him: "I have seen my teacher." ”

Turning around, he explained: "Let the students stop." ”

A close entourage of the Zhao family hurriedly ran over and shouted that Ambassador Zhu was coming, but only after the loud shouting of the entourage could he hear the voice clearly.

When the students of Jingshi University heard that the mountain chief was coming, they all put down the muskets in their hands, tidied up their collar clothes, and walked over to salute Zhu Shun.

Zhu Shun nodded, and responded to the students: "Doumi, you are in a hurry to call the teacher over, what good things have been invented." ”

Zhao Doumi took a musket from the table next to him and handed it to Zhu Shun: "Master, the third-generation rear-loading rifled gun has been officially finalized and standardized." ”

Zhu Shun himself made some Migne-style breech-loading rifled guns, but since he accepted the fourth disciple Zhao Doumi, he has been hiding from him, hoping that the fourth disciple Zhao Doumi will invent the third generation of muskets with his own talents.

Zhu Shun expected that it would not be invented until about nine years of Chongzhen at the earliest, but he did not expect Chongzhen to invent the third-generation breech-loading rifled gun in seven years, and it was also standardized.

Zhu Shun took over the third-generation rear-loading rifled gun and looked at it carefully: "What's the name?" ”

Zhao Doumi still didn't have the slightest smugness on his face, and said without humility or arrogance: "Doumi rifle." ”

The Doumi rifle as a whole is composed of a brown body and a black barrel, with a barrel with a black shiny metallic luster, which is about eighty or ninety centimeters long.

The back is connected to the butt, which resembles a formal rifle, and the color of the butt is also brown.

Zhu Shun took over the report and checked the data of the Doumi rifle.

Doumi rifle.

Caliber: 16.4 mm.

Weight: 4.1 kg.

Overall length: 1420mm.

Barrel length: 920 mm.

Maximum range: 738 meters.

Effective range: 510 meters.

Zhu Shun finished reading the data of the Doumi rifle and praised: "Good gun, good name." ”

Now that standardization has been achieved, Zhu Shun is most concerned about the practicality of the Doumi rifle: "The life of the body." ”

The biggest reason why the Liaodong Border Army and the officers and soldiers of the Ming Dynasty resisted the use of bird guns was the problem of the explosion of bird guns, which could blow up fingers at least, blind eyes at worst, and possibly lose their lives.

The Ming Dynasty did not even achieve standardization, let alone parameterization of the life of the body.

Zhao Doumi had long known that his mentor would care about this issue, so he took out another report from the table of the Eight Immortals: "Mentor, please take a look." ”

There are three types of body tube life.

The first is the design life, the life requirements put forward by the user before the research and development, requiring the service life of the new musket to reach 300 times, 400 times, and so on.

There is no user for the time being, but Zhao Doumi has made a request for his research club, at least 150 times.

The second is the shooting life, the indicators of the doumi rifle meet the requirements, the caliber size, weight, overall length, etc. have reached the design indicators, after the complete finalization, the highest and lowest life that can be achieved.

Zhao Doumi offered a reward of 500 taels of silver, put a layer of chain mail on a householder, and put a pair of Western knight plate armor on the outside, and after dozens of sampling tests, the result was finally obtained.

The maximum life is 280 times, and the minimum life is 253 times.

Far exceeded the design lifespan, and Zhao Doumi rewarded each person with five taels of silver.

The third is the service life, the doumi rifle has been tested in the last round, and the highest and lowest life has been obtained, and the number of fires has reached 253 times normally, and the bore will be exploded.

Zhao Doumi has finalized the service life after the comparison of various parameters.

Among them, the continuous life is 8~10 times, and when this parameter is reached, the doumi rifle must be cooled, otherwise the service life will be reduced.

The service life is 200~230 times, and a bucket rifle fires normally 200 times, and it will be eliminated, and the maximum cannot exceed 230 times.

Zhu Shun is obviously satisfied with the life parameters of the Doumi rifle.

Zhao Doumi sighed: "The barrel is made of ordinary low-carbon steel made by the steel-filling method, if there is special steel, the disciple is confident that the service life will be increased to five hundred times, or even a thousand times." ”

The problem of special steel is also the biggest problem that plagues Zhu Shun, especially the problem of mass production, which hinders the process of the industrial revolution: "The price is geometric. ”

Zhao Doumi took out the third report and personally reported it to Zhu Shundao: "Master, we don't have the right to mine iron ore now, so we can only buy iron ore from the prince of Fuwang." ”

"This also leads to a high price, but fortunately, the wood used in the bed and the tray has been steam produced, and the price is low."

"The final price of a bucket rice rifle, three taels and four cents of silver, the selling price of the teacher?"

The cost price is three taels and four cents of silver, and the selling price can't be too dark, Zhu Shun thought for a while and said, "Ten taels of silver." ”

More than three times higher!

But for the bird guns on the market today, it is too cheap, and the first generation of arquebuses are sold for twenty taels of silver.

The selling price is set, but Zhu Shun will not sell it for the time being, and will strictly cover up the news of the successful development of the third-generation musket.

It won't be long before it will be useful.

As for whether the students of Jingshi University Hall will say that they only know how to study and play, where do they know the significance of this standardized doumi-style rifle for this era.

Zhu Shun was about to leave, when Zhao Doumi took out another thing and stuck it on the Doumi-style rifle.

It turned out to be a bayonet for the Doumi rifle!

Who is the most restrained firearm class?

There is no doubt that cavalry, before the invention of the machine gun, could easily break through the death blockade of firearms with its speed.

What is the most restrained cavalry class?

Undoubtedly a pike-sergeant.

The overall length of the Doumi rifle is 1420 mm, and with a 613 mm bayonet, it is a long spear.

The invention of a small bayonet, although simple, is of great significance.

The invention of the bayonet was the turning point between the age of cold weapons and the age of firearms.

Announcing the arrival of the era of muskets as infantry equipment and large-scale installation!

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