"Did you make a choice between launch range and recoil?" Although I knew the problem, Lin Mo still asked.

Wu Liangdong nodded and explained: "We thought of many ways to solve this problem. For example, we found that the semi-automatic buffering part of the back seat, so we designed the semi-automatic one next to it.

But after trying it, it is still not ideal. At most, within the recoil range that can withstand, the ejection distance is about 150 meters, which is still far from what you require.

We have also tried the retractor, but because of the limited gas volume and large diameter, its effect is very few and almost none.

We have also tried to reduce the caliber, but the range and recoil are still big problems. If we want to reduce the range to meet the standard, there is basically no lethality.

For example, the one that is modified from a machine gun is quite powerful, and although the failure rate is currently extremely high, it can be gradually improved.

The problem is that its range is only the lower limit of 200 to 300 meters that you set. Including its physical weight, it is not practical. Even the limiting effect of the shotgun is used for security, like a shotgun."

Lin Mo nodded and thought carefully. There should be no problem with the transmitter. After all, the weight has not reached the limit of burden even if it can withstand the chamber pressure.

Of course, except for the machine gun, after all, it uses a tripod to withstand recoil, rather than burdening the barrel weight related to the chamber pressure.

There is no major problem with human body shape. The recoil problem can be attributed to the structure and ammunition of the gun, but even semi-automatic development and testing have been developed and tested, and the problem is obviously not in the structure of the gun.

Moreover, there are successful examples in later generations that have proven that these structures are available, and if there are any special structures on the launcher, they cannot be used in so many categories of weapons.

After all, mid-fold, rotor, semi-automatic, etc., no matter how you look at it, it doesn’t seem like there are some mechanisms that can be shared, so the problem should be the ammunition, after all, there are more common ammunitions.

Realizing that the problem was ammunition, Lin Mo thought about it carefully. Unfortunately, after thinking for a long time, he still didn't think about where the problem was.

Turning around, seeing everyone looking at him, he waved his hand quickly and said, "I'll think of a solution again, and you can also help test it and find other problems."

When everyone heard this, they stopped standing up and took the ammunition and started testing. Although the power of the weapons is quite touching, if the problem can be solved smoothly, everyone can still foresee the effects of such weapons, so they are still more active.

Listening to the tone, Lin Mo never recalled what was missing. After thinking for a while, he decided to change direction and no longer struggled to think about it, but to think about solutions.

Unfortunately, this is even more light. Lin Mo was helpless after scoring his stomach, but he was not discouraged. If it was so easy to explain, Wu Liangdong wouldn't have to do that.

However, most of them are brought about by unknown reasons. I don’t know if there is such a solution, so I am confused and disappointed, and he is sure there is a solution.

"Brother Fei, can this thing be a try for me to have two shots?"

Zhuzi stood aside, looked at the things on the ground, rubbed his hands, and asked Wang Shoufei with a longing look on his face. In his words, it seemed that he was still pleading with pleas.

"...No, no, no, no, no..." Wang Shoufei shook his head like a wave drum, and said, "It's okay to let you play with it, but we only had a few shots left in the shells, so we can't use them anymore."

Zhuzi was unwilling to give up and said, "You can ask the institute to help get the shells after using it! Just like that training shell, it shouldn't be very difficult, right? After all, those messy ones without fuses can be picked up and reused after use, and there is no much expense."

Wang Shoufei was also a little moved and said, "Okay! Go and ask, you can do it. After it is done, you will be addicted to it."

"…Uh…” Zhuzi looked helpless. Did he mean that? What he wanted to say was that since there was a way to get ammunition, the remaining few rounds should not be taken out and rewarded for him. But looking at Wang Shoufei who had strode to find someone, Zhuzi could only follow him helplessly.

Lin Mo was walking under the tent next to the shooting range wall for a long time, but he still couldn't figure out the solution. He happened to walk to the two of them and listened to this scene in a real way.

Looking at Zhuzi's departure back, Lin Mo asked his head full of questions. He hadn't seen him have any interest in cannons before! Could it be that he had opened the Ren and Du meridians by himself? Or was Zhuzi possessed?

However, Lin Mo's eyes were soon attracted by the Taisho 11th-style flat-fire cannon on the ground. After a moment of loss of mind, Lin Mo's face showed a smile.

Wu Liangdong was communicating with Wang Mingkun, Wang Shoufei and others. It was probably not only about ammunition, but also about the exchanges between these weapons and the issue of previous distribution of weapons.

"Captain Lin, have you figured out a solution?" Seeing Lin Mo coming with a smile on his face, Wu Liangdong was slightly stunned and spoke with joy.

"…Well..." Lin Mo nodded slightly and replied with a smile: "Do you still remember the grenade launcher I gave to you to study in Shanghai before? The solution is on it."

Apart from the training ground, a piece of the seized grenade cannon and flat-fire cannon, is used for training and proficiency. There must be a piece of the machine repair institute for research.

After hearing this, Wu Liangdong frowned slightly and said a little disappointed: "What you mean is to refer to the design of the grenade launcher, this should..."

Lin Mo waved his hand and said, "In terms of the design of the launcher, there is no big problem with what you have done, the problem lies in ammunition.

There are two types of ammunition in grenade launchers. One is used to fire grenades, and the range is like these, and the other is a special grenade, which directly increases several times.

Even if the design of special grenades is more reasonable, it is impossible to overturn the performance of the ammunition by relying solely on gunpowder and gas, let alone the chamber pressure limit.

The fact is that the range of special ammunition not only doubled, but also has a larger weight, but it can also share an ultra-light launcher.

In other words, the special thing is not on the launch cylinder, but on the ammunition, so we can refer to and use it here."

This chapter is not finished yet, please click on the next page to continue reading the exciting content behind! Xu Zhiyu, who was on the side, spoke up and asked: "Captain Lin, what you said, did you mention the principle of high and low pressure when checking and dismantling ammunition on the road?"

Lin Mo nodded and introduced the principle of high and low pressure, but it was very superficial and general. It seemed that he didn't know much about it, but he just knew that this was the case!

Fortunately, when Lin Mo mentioned the grenade launcher, Wang Mingkun asked someone to go to the arsenal and take the grenade launcher and ammunition, and everyone started to dismantle and check it on the spot.

There is naturally a reason why Wang Mingkun is so concerned. Their positioning is a small army that can afford to carry limited things, and this is obviously something they can use.

Before, he had the idea of ​​grenade launcher, after all, it was equipped with cannons! It could greatly increase firepower, who wouldn't want to?

However, if you want to use the grenade launcher, you need rich experience and can only shoot in a curved manner. You didn't think there was anything before, but this launcher can be shot directly, at least after the range is increased, so the grenade launcher is not very fragrant.

After taking apart, the principle of high and low pressure is actually very simple. The gunpowder is first ignited in the cavity inside the bullet body to form a high pressure chamber, and then the gunpowder gas is transported outward through the hole.

Due to the limitation of holes, the gas flow time will be extended to a certain extent. While the gas flows out, it also pushes the bullet out of the bore, thereby vacating a larger space. Therefore, the bullet and the body tube form a low-pressure chamber with a lower chamber pressure.

Recoil mainly comes from the instantaneous explosion of gunpowder gas, and holes hinder this process, so the recoil is naturally greatly reduced.

Similarly, the gas explodes slowly, and the pressure on the gun barrel is naturally smaller, the manifestation is that the pipe can be thinner and lighter or use more common materials with more ordinary performance.

After everyone studied and exchanged their studies and thoroughly understood the principles, Wu Liangdong was so excited that his face blushed to his ears. It was obvious that he had confirmed that this was the solution.

"The principle can be used easily, but in terms of the specific implementation structure, I think it is necessary to change it, such as placing the high-pressure chamber part on the shell, and then using the space between the shells and the low-pressure chamber as its space.

First, reduce the weight of the warhead, and the weight saved can be used to increase range and power; second, the shell can also share part of the larger chamber in the early stage, and then make the launcher lighter, or allow the ammunition to be adapted to more types of launchers. For example, the rear of the rotor model needs to be distributed with the casing."

Wu Liangdong nodded after a little thought and agreed that this part of the weight should not be added to the shell, but should also be added to the bullet body. No matter where it is placed, the total weight of ammunition will not be increased or decreased, which means that it will not reduce the burden on the soldiers. So why not put it on the shell and improve the performance of the ammunition.

Lin Mo thought for a moment and said, "In this case, the shell needs to be made of steel, but considering the difficulty of processing, it is not clear about its cost for the time being, so it needs to be calculated in detail.

In addition, by increasing or decreasing the size of the launching drugs and the size of the holes, we can develop ammunition with different bore pressures, such as high-pressure bullets, which can be used on grenade machine guns to increase the range."

Wu Liangdong had already taken out his work notebook and wrote down Lin Mo's suggestions one by one. Lin Mo also made more suggestions for this one after another.

"By the way, the flat-fire cannons and grenade launchers seized before should also be imitated. It is best to make them out as soon as possible, and find a way to achieve large-scale mass production in the future."

After hearing this, Wu Liangdong twitched his eyebrows slightly and said in confusion: "That flat-fire cannon feels quite behind. As for the grenade launcher, its tactical effect is almost the same as that of the grenade launcher. There should be no need to do it, right?"

"…Ah…" Lin Mo sighed and said helplessly: "Weapons cannot only consider the effectiveness, but also the cost! These two models have low technical difficulties, low cost of weapons and low usage costs, which is in line with national conditions!
Chapter completed!