Qin Yiming successfully got Xu Zhen'er's selfless support, got 200,000 stone of grain, plus 50,000 mu of fertile land given by Xu Zhen'er as a dowry, plus tens of thousands of mu of private land from Hu Shoucai before, there is still a surplus of the land in Qin Yiming's hands.

However, building a walled fort not only requires people, but also a lot of money, Qin Yiming still has more than 200,000 taels left in his own hands, which is of course not enough, because he built three walled forts at the same time, and he also needs to strengthen several walled forts such as Pingli Fort, which requires a lot of wood, stone and other materials, which are very large consumption.

Qin Yiming started to think about making money again, but this matter is not a top priority, his guards who have fallen from the military do not need to be paid monthly salaries like the soldiers recruited by the imperial court, so he can save a lot of money, and the money in his hand can support him for a period of time.

Recently, he got a bad news, Cao Wenzhao, the first fierce general of the Ming Dynasty, in the battle to exterminate the peasant army, or in the place of Hutou Town, was ambushed and besieged by Li Zicheng's peasant army, and finally outnumbered, Cao Wenzhao killed himself, this news made Qin Yiming depressed, so that the entire Ming Dynasty was extremely shocked, that is there a Cao in the army, the thief Cao Wenzhao was frightened, even Cao Wenzhao was killed in battle, who else can resist the attack of the thieves in the future, who else can annihilate the thieves, and the people of the Ming Dynasty are peaceful and peaceful.

However, there is also a good thing, that is, Qin Yiming's long-awaited electric switch has finally developed a style.

Steward Hu and the others were very happy, because Qin Yiming rewarded everyone in the arsenal with ten taels of silver after the electric switch style came out.

Qin Yiming took the veterans of the Bird Gun Battalion, as well as Steward Hu and the two masters, to experiment with electric switches at the shooting range.

After a soldier shot ten times, none of the bullseyes within fifty steps were missed, and the faces of Steward Hu, Master Tian, and Master Shan turned as ugly as pig liver, Qin Yiming decided to personally experiment with this electric switch to see if it was good or not.

He observed the firearm in his hand, it was very rough, the little monkey next to him handed over a sub-gun, Qin Yiming put it on, the mother gun tube and the sub-gun did not fit very well, there was still a part of the gap in the middle, the flint and steel had been installed, Qin Yiming only needed to open the medicine pot protruding from the side of the zigong, and then pour **, and then open the fire, which was very convenient, at least three times faster than the previous bird gun filling several degrees.

Qin Yiming took aim and fired.

bang

The six guns shot rapidly in a row, this shooting speed was simply incomparable to the Vulcan spear, the first time he used this gun, Qin Yiming shot all the six guns within two minutes, if he was proficient, he believed that he could shoot once within ten breaths, so it was a little slower than the average archer. Qin Yiming is still very satisfied with the firing speed, if the method of three-stage attack is added, then this firing speed is no less than that of the bolt rifle of later generations.

It's a pity that the accuracy is too poor, and the effective shooting distance is greatly shortened, which should be about one hundred and fifty paces.

"The gap between this child and mother is too large, and the mother is too thick, which leads to a shortened shooting distance, and the aim is not accurate, so you can't solve it?" Qin Yiming asked.

"My lord, it's not that there is no way, it's just ......," Master Tian said in a hurry.

Qin Yiming said: "What's the problem? Just what? ”

"My lord will go to the arsenal with me, and it will be easier for me to tell my adult on the spot so that my adult can understand!" Master Tian said, Qin Yiming and the others soon came to the arsenal, that is, the blacksmith shop.

Qin Yiming looked at the craftsmen who were polishing the red-hot iron, as if they wanted to break it into a rectangular iron plate.

Master Tian said at this time: "My lord, our master is like this, first beat the red-hot iron into an iron block, and then put the iron on this concave iron plate, beat it, slowly beat it into a circle, and finally add iron sand to burn red to connect, so that the iron pipe is not strong, so it must be coarse, so as not to blow up the chamber, and the person who uses the gun is very dangerous." ”

Qin Yiming nodded.

"But if we use a whole solid iron rod directly, and then drill a hole from the middle, all the way to an iron pipe, then the hardness of the iron pipe will be better, this is also the production method of Lu Mi Gong, but?"

Qin Yiming asked, "But what?" ”

"However, if such a pipe is drilled into a pipe by hand, the production is extremely slow, and it requires a large number of people, and it is still a very skilled master, because if an iron pipe is drilled and bent a little bit, the whole iron pipe will be invalid. Therefore, this method is time-consuming, labor-intensive and material-intensive, although the iron pipe produced is of high quality, but it is ......"

Qin Yiming already understood.

At this time, Master Shan also stood up and said: "My lord, the shooting distance and accuracy of firearms actually have a lot to do with **!" In fact, the ** we produce is not qualified, and the ** particles are large and small, which greatly affects the accuracy of shooting. After Master Shan finished speaking, he took out two packs of **, one of which clearly showed that the particles were large and small.

"Oh?" Qin Yiming asked.

"My lord, please look at this pack**, this is my carefully developed **!"

Qin Yiming looked at it seriously, and it was indeed much smaller particles: "These two are different in particle size, the latter is smaller, like powder, and the former obviously has uneven size particles, will this difference be very big?" ”

"My lord, I can show you the difference between the two now!"

After Master Shan finished speaking, he asked people to bring two pieces of fine white paper, the first one put a little coarse particles, and the second one was developed by himself, he first lit the ** on the first piece of paper with an open flame, and a puff of black smoke accompanied by a sound of banging, **emitting an open flame, and the paper underneath was also burning, leaving an obvious **residue.

Then he got a second one, and the ** on the second piece of paper also emitted black smoke, but the fire was brighter, and the burning speed was faster, and the most important thing was that there was basically no **residue, the advantages and disadvantages of these two **, a discerning person can understand it at a glance.

"This first ** is developed according to the standards of the imperial court**, but the effect is very average, the best ** is like this, there is no residue after burning, and it can be burned on the hands." As he spoke, Master Shan opened his left palm, put a little **, and then lit it with an open flame.

Everyone saw this scene and pinched a cold sweat for Master Shan, but Master Shan was bold and not afraid at all, only to see that he lit **,** burned rapidly, and emitted a dazzling firelight, but Master Shan's hand was motionless, **After sweeping and burning, Master Shan's hand not only did not have much residual **dregs, but also his hand was intact without a trace of red.

Terrible! I still have such a technology, and the black ** at this time can do this! Qin Yiming's heart was shocked.

"It's also a lack of manpower, so we can't produce it on a large scale, right?" Qin Yiming asked.

Master Shan nodded helplessly.