The people who accompanied Zhang Bin to drink this time, except for Wang Chengen, were basically weapons experts in the late Ming Dynasty, and their topic was naturally inseparable from weapons.

The wine was slightly drunk, and the relationship between everyone was quite harmonious, Sun Yuanhua finally couldn't help but be curious: "Lord Bi, what kind of weapon did the governor invite you to come to?" ”

When Bi Maokang heard this, he directly raised his wine glass and scolded with a smile: "What an adult, they are all their own people here, if you don't shout like this, you will be punished with a glass of wine." ”

Sun Yuanhua raised his wine glass with an embarrassed face, took a sip of the wine, and then apologized: "Brother Menghou, it's the younger brother who is wrong." ”

Seeing this, Bi Maokang nodded with satisfaction, and then shook his head and said, "Shuangquan asked me to make a musket." ”

When Sun Yuanhua heard this, he said: "There are a lot of muskets, what kind of bird guns, thunderbolts, electric guns, three-eyed guns, five thunder god machines, which one is Brother Meng Hou going to do?" ”

Bi Maokang shook his head and said proudly: "These are not, I have developed a new type of musket, which does not use the fire rope and uses flint to hit the ignition, which is much easier to shoot." ”

Sun Yuanhua couldn't help but say with interest: "Oh, flint ignition, how is the ignition method?" ”

Bi Maokang directly briefly introduced the principle of the flintlock pistol, and Sun Yuanhua immediately said: "Brother Meng Hou is really talented, powerful, by the way, I don't know if Brother Meng Hou has a way to solve the problem of exploding the chamber?" ”

The musket at this time was not as safe as that of later generations, and it was common to explode the chamber when it was opened, especially since the Zhengde Dynasty, the corruption of officials has become increasingly serious, and the people have been miserable, and a large number of military craftsmen and craftsmen have fled, and the quality of the musket has also seriously declined, and the musket has become a nightmare in the army.

Qi Jiguang once mentioned the quality of muskets in the training documentary, such as "the work is especially rough, the body is short and thin, the abdomen is obliquely curved, and the size of the mouth is not customized", this sentence highlights the difference in the quality of the musket at that time, the musket barrel is short and thin, the middle is bent, and the caliber is inconsistent, such a musket, the bullet often can't be stuffed in, even if it is stuffed in, it will explode the chamber after a few shots, and with a "snap", the enemy is fine, but his face is full of flowers, who dares to use such a musket!

Sun Yuanhua did not deliberately bury Bi Maokang when he raised this problem, this is the reality in the army, he has been in the army, so he naturally knows it, so he hopes that Bi Maokang can have a way to solve this problem.

Bi Maokang only improved the ignition method, but he didn't make any improvements to the barrel, and he couldn't help but be embarrassed when he heard this: "This, I really haven't thought about it, Shuangquan, have you considered this problem?" ”

Zhang Bin was discussing with Wang Zheng about the improvement of the details of the drilling machine and lathe, and he couldn't help but be surprised when he heard it: "Ah, what's the problem?" ”

Bi Maokang said directly: "It's the problem of the musket exploding." ”

Zhang Bin really thought about the problem of the musket exploding, and the musket was indeed easy to explode at this time.

Because, the barrel of the musket is rolled up with a thin iron sheet, and then the interface is welded with hot melt welding.

This thin iron sheet is easy to deform when heated, and the welding is not very reliable, so if you use it, the bullet will not get out of the card, and it will naturally explode.

To solve this problem is actually very simple, Zhang Bin said easily: "This, it's easy to do, just use cast copper or cast iron barrels." ”

There are no copper pipes or iron pipes to sell at this time, Zhang Bin's so-called use of cast copper or cast iron barrels means to do it himself, this time Sun Yuanhua and Bi Maokang can be blinded, just how to cast a barrel that is a little thicker than a finger, and the casting must at least have a gap as large as a finger, otherwise the copper and iron juice will not flow, and it will not be cast at all!

Sun Yuanhua estimated and said: "This barrel has to be at least one finger thick before it can be cast, and the entire barrel is not three fingers thick!" ”

Three fingers thick is a gun, a person can't summon it, does it make sense to make it?

When Zhang Bin heard this, he smiled and said: "It doesn't need to be so thick, just a little thicker than the original barrel." ”

Sun Yuanhua thought that Zhang Bin didn't know, so he hurriedly reminded: "No, the gap is too small, and the copper juice and iron juice can't flow." ”

Zhang Bin slapped his forehead when he heard the words and explained: "It's not cast into a pipe, it's directly cast into a solid one, and then use a drill bit to drill, isn't there a drilling machine now, it doesn't cost much." ”

This Sun Yuanhua really didn't expect that although the barrel had been drilled with a drilling machine before, the barrel was not solid, and the so-called drilling was actually equivalent to scraping the hole with a scraper, not drilling a solid rod into a pipe.

At this time, as soon as Zhang Bin said it, he reacted, and it was really not very troublesome to drill through the solid copper rod with a drilling machine, and he couldn't help admiring: "My lord is wise, and the barrel that comes out of this way is not easy to explode." ”

Speaking of this flintlock pistol, Zhang Bin became interested, and he immediately proposed: "Brother Menghou, why don't you change the flintlock pistol to a flintlock pistol and reload it in the back, so that the reloading speed can be increased by at least ten times." ”

Bi Maokang heard this, his eyes lit up, if he made a gun, the loading speed was indeed fast and scary, and if he stuffed the gun inside, it would be over, if he was loaded with ammunition in front, he first had to pour the gunpowder into it slowly, compacted it with a drill, and then slowly poked the bullet from the muzzle, I don't know how long it would take!

It doesn't seem to be very difficult to change it to a child-mother gun, as long as the back of the barrel is made a little bigger, and then a gun door similar to a gun door is added, everyone is interested in this, and after discussing it for a while, the improvement plan is there, and Bi Mao Kangdu is gearing up to start trial production immediately.

Zhang Bin is naturally not allowed, Wang Zheng is almost exhausted like this, he must take a good rest, he doesn't want Bi Maokang to make a move, Wang Zheng will follow all night.

Under his compulsion, Bi Maokang and Wang Zheng had to resist the impulse and ate and drink with everyone for nearly an hour, and in the end, Bi Maokang and Wang Zheng were almost drenched, Wang Zheng climbed into bed and fell asleep, while Bi Maokang simply asked Sun Yuanhua for a room and lived directly in the foundry.

Early the next morning, there was another madman in the workshop of the cannon foundry, Bi Maokang developed something, which was also quite devoted, Wang Zheng had this companion, and naturally worked harder, and the two often forgot to sleep and eat, stayed up all night, and were very busy.

Later, Bi Maokang simply moved the bed to the factory, and when he was tired, he fell asleep, got up and continued, completely like Wang Zheng!

The power of role models is endless, seeing the two of them working so hard, Sun Yuanhua and Song Yingxing couldn't sit still, and soon joined the ranks of crazy people.

As a result, the number of madmen in the factory doubled to four.

Song Yingxing is responsible for blending the recipes of cast iron and cast copper, providing molten iron and copper juice;

Sun Yuanhua was responsible for making molds, turning sand casting, and directing the processing of artillery;

Wang Zheng is responsible for improving and operating machine tools;

He was responsible for the development of new flintlock pistols and supervised the processing of muskets;

The four of them worked together, and the development of muskets and artillery was simply amazing, and it didn't take long for them to make samples of field tiger squat guns and improved flintlock guns!