Comparing the two generations of rifles together, the Wanli-style rifle is not only much smoother, but it is impossible to see the difference between it and the previous generation of Longqing-style.

It's right that you don't see the difference, because the specifications of the two generations of rifles are exactly the same. Moreover, all Longqing-style rifles can become rifled guns that fire Minnie bullets as long as they are very simple modifications.

Later in Prussia, when the Crim War required all infantry to be equipped with rifled guns immediately, 300,000 old smoothbore guns were rifled in less than a year.

The Jiangnan Group's arsenal has been implementing standardized production for more than ten years, and has long been universal in parts, greatly reducing the production and maintenance costs of weapons. Based on the principle of thrift and thrift, the two generations of rifles have adopted the same specifications. In this way, once necessary, the group's Longqing style can be upgraded to rifled guns in a short time.

However, this modified rifle cannot be called a Wanli rifle, because the standard of the Wanli rifle is - an effective range of 1,000 meters and an accurate hit within 500 meters.

To achieve such a shocking power, it is necessary to ensure that there is no leakage during shooting. After repeated measurements, the expansion ability of the Minnie bullet is 1 mm, which requires that the inner diameter of the barrel and the clearance of the bullet should not exceed 0.5 mm.

0.5 mm is nothing to the industrial era in later generations, but for the craftsmen of this era, they can only be described in two words, that is - gambling monsters... Oh no, the magic craftsman!

Only Jiangnan Arsenal, which uses cast iron to mechanically process the barrel and stamp lead bullets with hydraulic stamping machines, can meet such strict requirements and be extremely low in cost.

The barrel of the Longqing rifle is semi-hand-made, with uneven inner diameters and sizes. Most of them have too large clearances, so the initial velocity of the Minnie ammunition is only half that of the Wanli rifle, the effective range can only reach 500 meters, and the precise shooting distance is only 200 meters.

Although the Longqing rifle rifle is not on the same level as the Wanli rifle, its range is twice that of the smooth bore version, which is definitely a huge leap.

In addition, the Wanli-style rifle also targets the high humidity and high salt gun environment of the coast guard troops, and has "baked blue" treatment for all metal parts, which is also something that the Longqing-style has not had before.

Baking blue is a thousand-year-old anti-rust process in my country. It is to place metal parts on a coal stove and heat, smoke, and oxidize them. Then repeatedly wipe them with peel oil extracted from the wax of black seeds to form a dark and shiny film on the surface of the metal parts. This anti-rust effect is quite good. I wonder if Jiangnan Arsenal and Jiangnan Shipyard were used more than ten years ago.

However, the Wanli-style rifle was not prepared for the South and Western sides. Artillery is the protagonist of the battle between sea and islands. Even if it is forced to fight on land, shooting in a Longqing-style queue is enough to deal with enemies with severe lack of cavalry.

Zhao Hao produced this new type of rifle to restrain the cavalry...

Because the effective range of the original Longqing rifle was only 100 meters. If it charges against the cavalry of a brigade, even if it is a well-trained Marine, it will only be enough to fire two shots, and will be rushed in front of you and will be forced to engage in a hand-to-hand battle with bayonets, or even directly defeat the line, causing huge losses.

But after changing to the Wanli rifle, you can start shooting at a distance of 1,000 meters, and you can accurately strike at a distance of 500 meters. Before the cavalry approaches the infantry's position, most of the horses and riders have been hit.

Moreover, because the warhead of the Minnie bullet is soft, it will deform immediately after hitting the target, so it will stop very well.

In another time and space, it was also after the Minni rifle was equipped on a large scale that made the cavalry attacking infantry a suicide act. The cavalry, the king of the cold weapon era, gradually disappeared on the battlefield.

So where are the cavalrymen? He didn't say anything, and everyone didn't dare to ask...

~~

The production process of visiting the Wanli rifle is shocking, but the next visit opens Zhao Hao's eyes-

He saw the already mature flintlock revolver, which was the "Thunder Gun" pistol version developed by Zhao Shizhen, which was very close to the shape and principle of later revolver pistols. He once again pioneered the reduction of the number of barrels, leaving only one barrel, and the rest of the barrels were all shortened, becoming a nest for the barrel to supply ammunition.

He also got inspiration from the ratchet positioning characteristics of the winch on the Coast Guard warship, and used a simple mechanical linkage principle on this revolver. After this shot, while the hammer is reset, the bullet nest will automatically turn to the next grid.

"Good guy, add a fire hat and you'll be the revolver." Zhao Hao couldn't put it down and held this rotary flintlock rifle. It was such an excellent self-defense weapon.

"In fact, the fire hat has been developed." Zhao Shizhen said proudly, this was his main purpose of inviting Zhao Hao to visit.

"What? Did you make a trick?" Zhao Hao was shocked. In order to avoid the distortion of the research at the Institute of 00, he did describe the direction of future guns to his eldest nephew.

At that time, Zhao Hao told Zhao Shizhen with certainty that if he installed a flintlock rifle in front, the Wanli-style rifle will come to an end. The future rifle is more similar to the rear-mounted sub-gun-type electric gun he developed back then.

The sub-gun of the electric gun is a metal fixed-loading bullet that can be reloaded, but in order to adapt to the inability to seal the flintlock, the air leakage is very serious. Zhao Hao told him that the direction of improvement should be to develop a kind of gunpowder that will get angry when rubbed and impacted, and make a fire hat and put it on the tail of the bullet...

However, Zhao Hao didn't want this weapon to appear too early, so he didn't tell him how this fire hat was made.

Unexpectedly, my eldest nephew actually made it happen by himself...

"It's not us, it's the credit of the brothers." The eldest nephew said humbly: "Last winter, the Qu Institute of 04 told me that when they were conducting the experiment, they accidentally synthesized a dangerous product and asked me if I was interested."

"..." Zhao Hao was speechless. The 04th Institute is the Institute of Chemistry. In recent years, casualties and accidents in various institutes are second only to 00. It is not unreasonable.

"In the experiment, they found that after nitric acid is mixed with pure alcohol, it is very likely to explode violently once it shakes." Then they heard his eldest nephew's expression solemnly.

Zhao Hao's face was also ugly. Because there was at least one bloody accident behind this...

"Since 04 named this substance explosive acid." Zhao Shizhen said: "When I heard that, isn't this exactly the characteristic that the fire hat needs? However, explosive acid is liquid and cannot be used directly. I asked Qu, is there any way to turn that thing into powder, or soak something in it, and then take it out and dry it, will it still work?"

"At that time, Qu Rukui looked at me with an idiot's eyes." Zhao Shizhen said embarrassedly: "Just say one sentence, is this awesome, do you understand?"

"I said there is no solid sulfuric acid? Then he took a chemistry class by force. I learned that explosive acid is highly corrosive, and even if it forms crystals, it cannot be used directly." Zhao Shizhen said again: "But Qu reminded me that I can try reacting with various metals, and maybe I can find what I want."

"Then I'll come back and start trying." Zhao Shizhen said excitedly: "The blasting acid is indeed extremely corrosive. After pouring tin, copper, lead and mercury, it will melt. After investing silver, it will melt, but it will be clear and white foam at the bottom, and it will be dried. When the anvil is knocked on, it will explode. It will be completely in line with the requirements of the fire hat!"

As he said that, he laughed and said, "In fact, the effect of using gold is the best, but the cost is increased..."

After listening to it for a long time, Zhao Hao couldn't stop talking about the smartest mind. As expected, he didn't know the times. He only taught them basic chemistry knowledge, so they figured out lytic acid gold and lytic acid silver...

With a complicated mood, Zhao Hao visited the fire hat gun handmade by Zhao Shizhen - the next generation rifle mentioned by his eldest nephew. It was basically the same as the Wanli rifle, but it replaced the medicine pot that was loaded with the fire hat installed on the hammer.

This small improvement can further simplify the shooting process and increase the shooting speed. Moreover, the fire silence rate of the flintlock rifle is one-seventh, while the fire silence rate of the fire cap rifle is as low as one-200, which greatly improves reliability.

"And because of the cancellation of the medicine pot, not only will the cost of making guns be further reduced, but the air tightness of the gun body is also better, greatly enhancing the power of the rifle." Zhao Shizhen spared no effort to promote his beloved 'little daughter':

"There is another very important thing. When firing, there is a delay in firing. Because the gunpowder in the pot can only ignite the chamber after it is completely burned, and the fire cap gun can be fired the moment the hammer hits the fire cap. The advantage is very obvious when firing fast moving targets!"

"Since my uncle wants to deal with the cavalry, are you considering upgrading the Wanli style again? Ensure that it is foolproof!" Zhao Shizhen looked at Zhao Hao, hoping to marry his younger daughter like her two sisters. "At worst, it's just starting from the breech gun and not being announced..."

Zhao Hao understood Zhao Shizhen's mood very well. The Wanli style and the Longqing style were just a big progress, and the fire hat gun was revolutionary. It would be a good thing to create such awesome weapons, and it would be unpleasant for anyone to feel.

"No!" But he shook his head firmly.

Because this incident once again educated Zhao Hao that the importance of the theory of limited generation difference is really not careless!

He called Zhao Shizhen aside and told his eldest nephew softly that in fact, Western medieval alchemists had prepared threate gold during the alchemy process and found that this thing was prone to explosion.

In fact, thirst is thirst, but the name is different.

But because it explodes too easily, cannot be used as gunpowder, or mixed into black gunpowder, it has been regarded as useless for hundreds of years. It was not until hundreds of years later that someone thought that this useless feature could be used for firing systems.

"We must not help them break this layer of window paper!" He grabbed Zhao Shizhen's ear and said word by word.

After listening to Zhao Hao's story, Zhao Shizhen was also shocked. He was a little dissatisfied with his uncle's theory of limited generation difference, thinking that his uncle was too cautious and would make the research team hinder and unable to move forward.

Now he knew what his uncle was worried about. Europeans are really strong, but they don’t know where the way is. Once they have the right direction, they may catch up with them in a short time...

"So we must follow the theory of finite generation difference so that our opponents can keep them in the dark as long as possible!" Zhao Hao said unquestionably to Zhao Shizhen: "I have told you the great truth countless times. Remember to me, whoever leaked the secret of the Fire Hat out of this research institute is the eternal sinner of the Chinese nation. He must be nailed to the pillar of shame in history like Shi Jingtang and Qin Hui!"
Chapter completed!