Anti-Japanese War, weapons designer at Fengtian Arsenal

As for the existing technology in the Republic of China, there were solutions to mechanical problems. You just piled up the materials and put them on the lathe, and you could always turn out qualified products. But chemistry was like mathematics. If you couldn't do it, there was really nothing you could do. There was no room for shortcuts.

Unfortunately, the film base, photosensitive material, protective coating, and anti-halation coating used in film all need to be produced by chemical industry.

Li Xin placed two film reels as big as pot lids in front of Li Qinwu and introduced them: "These are British-made film reels, 70mm and 35mm respectively. The former has a higher pixel count and can be shown in large cinemas, while the latter can be used in small and medium-sized venues.

Both types of films can be played for ten minutes and are priced at 3.5 and 2 dollars respectively. The 86 version of Journey to the West plus the sequel has a total of 41 episodes, and each episode is 50 minutes long, which is nearly 2000 minutes.

To show the entire 86 version of Journey to the West, we need at least 200 rolls of film. If we want to equip a Longlong store with all the Journey to the West films, it will cost us more than 700 dollars!"

Li Qinwu picked up the 70mm film reel and weighed it. It weighed a little over one kilogram. Such a reel of film could only be played for 10 minutes. The efficiency was really poor.

He suddenly thought of Xu Damao from the Red Star Steel Rolling Mill, the second most abject family in the world. He often went to the countryside to show movies. He was alone, on a bicycle, with a projector, a stand, a small battery, and more than 20 rolls of film. How the hell did he get here? He must be the Siheyuan Superman!

Retracting his thoughts, Li Qinwu felt that they must produce their own film. In the future, they will shoot more films, such as the Four Great Classics, Emperor Wu of Han, and Romance of Sui and Tang Dynasties. They also need to shoot some propaganda films to inspire the people to fight against invaders, conscription propaganda films, agricultural education films, and science and education films. The demand for film is huge, and they have to produce it themselves.

"Are there any film manufacturers in Shanghai now? What is their output?"

Li Qinwu plans to buy it directly with money.

"Yes, it's a small British factory with limited equipment, and it processes semi-finished products. They ship chemicals from the UK to Shanghai for synthesis, and the output is quite good. A large part of the film in Shanghai is provided by this company."

"Then buy it! Even if it's a semi-finished product, it can help us get through the early stages. It's just a roll of film. We can achieve mass production in a year or two!"

Li Qinwu said firmly that now that Longlong Convenience Store had opened, he could earn several thousand dollars every day and he was not short of money at all.

But Li Xin spread his hands, looking helpless. Li Qinwu asked in confusion: "Why? The British don't want to sell it?"

Li Xin nodded.

"More than being unwilling to sell, these Angsa bandits have announced that if Julong Culture wants to buy their films, they must agree to let them buy shares!

The Dragon Daily has been promoting the progress of filming Journey to the West these days. The British saw in the newspapers that we wanted to purchase a large amount of film, so they sent a shipload of raw materials directly from China. However, they refused to sell the film to us, hoarded it, and strangled us. They also joined forces with other small factories to not sell it, just to buy shares! "

A cold light flashed in Li Qinwu's eyes, and a malicious smile appeared on his face.

"Well, well, you have a way of dying, Englishman!

Don't worry about the film, I'll ask Li Xiao to buy some, just focus on filming here, if you need anything, feel free to call me, I'll open a portal to help you."

After saying that, Li Qinwu opened the portal and left Shanghai. That night, a fire broke out in the British film factory, and several tons of raw materials and precision instruments for producing film were burned?

The owner of a film factory, an old man named Ansar, burst into tears and claimed that he had sold his estate in England and borrowed a large sum of money to buy a warehouse of raw materials, but now everything was ruined. He could not pay off the loans even if he sold all his money, and he was afraid that he would have to sell cold hooks to make a living in his next life.

This incident was published in the Julong Daily, which fiercely criticized this lawless thug who dared to set the fire, and urged the Shanghai police to capture the murderer as soon as possible to restore justice to the film factory owner.

……

Li Qinwu returned to Chongqing and found a report on his desk. It was a gun test report he designed. He picked up the report and read it carefully line by line.

The first one is a report on the modified version of the Garand rifle. All test areas said that this rifle is powerful and quite strong when shooting continuously, but several problems were still found.

First, there is no bayonet mount, so a bayonet cannot be installed.

Li Qinwu slapped himself, damn, why did he forget to install the bayonet mount?

Although the Punishment Army has powerful firepower and often uses hyperspace teleportation to launch sneak attacks, and they rarely have close combat with the Japanese, he plans to equip mortal troops with this semi-automatic rifle in large numbers. Such troops will not be able to abuse the teleportation portal and will return to conventional combat, where they will have a high probability of encountering bayonet fights.

Damn it, I tested it first, otherwise I would have been stupid.

In addition, the magazine has a fatal flaw. The 25-round magazine is unreliable and the spring force is not enough to push the bullet into the chamber.

Li Qinwu really had no solution to this problem. As for springs, the quality of the springs is determined by the level of basic industry that produces them. Before purchasing more advanced equipment, don't even think about making any improvements.

Li Qinwu had no choice but to redesign the magazine, reducing the number of rounds from 25 to 20, 19, 18, and finally to 15. He made 100 magazines of each weight and sent them to various locations for re-testing.

Then he added a bayonet mount to the muzzle of the gun so that it could accommodate the Japanese's 30-mm bayonet. This thing was long enough, so he could use the bayonet himself after killing the Japanese on the battlefield.

Of course, it is better to use bayonets produced by ourselves. Li Qinwu plans to use ceramic steel to produce a batch of Type 30 bayonets. Ceramic steel bayonets are lighter and stronger, which gives us more advantages in bayonet fighting with the Japanese.

After finishing the modified Garand, Li Qinwu looked at the report on AK. The report said that they hoped to add a rubber pad behind the buttstock and a vertical grip on the handguard. It would be even better if a combat flashlight could be installed. After all, not all clones have night vision capabilities. Adding a flashlight can give soldiers more tactical options at night.

Then there is the old problem of unreliable magazines. There is a small probability that the 30-round magazine will have a feeding problem. Although it is a small probability here, if tens of thousands or hundreds of thousands of AKs are produced, this small probability will be very fatal.

Li Qinwu sighed. The problem of poor magazine flow is a long-standing problem that has not been solved in Western countries yet. This is why many squad machine guns in Western countries have magazines with a capacity of less than 30 rounds, and only a small number have 30 rounds. The more cult DP28 can hold 47 rounds, but it sacrifices portability and increases weight.

As for submachine gun magazines, since pistol bullets are small, they can hold 30 rounds or more. There is a more unusual Suomi submachine gun magazine that holds 50 rounds.

They use 4-row single-feed technology, and that small magazine can hold four rows of bullets. The cost is that there are 4 springs in the magazine, and the bottom of the magazine is under too much pressure, making it extremely unstable.

Finnish soldiers often reported that when they were lying down to shoot, as soon as the bottom of the magazine hit a hard object, the magazine would be broken open by the spring and bullets would fly everywhere.