Global Wasteland: Unlimited Upgrades for Vaults

"The production process of nitrocellulose and gun cotton is not troublesome, but the right cotton is a problem. Later, you only need to soak the gun cotton with ethanol and ether, and dry it to get smokeless gunpowder."

"The preparation of ethanol and ether is also not difficult. Ethylene can be extracted from petroleum, and ethylene can be used as a raw material for the production of ethanol. Ethanol can be obtained through hydrolysis of ethylene, and ether can be obtained through the catalytic reaction of ethanol."

Finding a piece of paper, Su Mo tried his best to recall the few chemical knowledge and piece together the TV series, and completed the plausible idea of ​​making smokeless gunpowder.

With a flash of light, after a systematic appraisal, it was confirmed that there was nothing wrong with this design drawing, and the idea was correct.

"So, the last difficulty is cotton? To make suitable gun cotton, the quality of cotton is very important!"

In the TV series made in Hanyang, Xu Jianyin once presided over the development of sulfuric acid at the Tianjin Manufacturing Bureau, which solved the problem of relying on imports of sulfuric acid at that time.

It was precisely because of his outstanding talent that Zhang Zhidong recruited him to Hanyang Steel Pharmaceutical Factory to be responsible for the production of ammunition.

One of the main raw materials for making gunpowder is cotton. In his research, Xu Jianyin found that there is a big difference between domestic cotton and foreign cotton.

Therefore, during the domestic trial production, the temperature, humidity, time, pressure, liquid concentration, etc. should also be changed accordingly. Perhaps this is the main reason for the failure of the Jiangnan Manufacturing Bureau.

In order to quickly find a production method suitable for China, Xu Jianyin "hands-on the pestle and mortar, and practiced it himself".

In only half a year, a sample of smokeless gunpowder was finally trial-produced.

After testing, the effect of the sample is completely comparable to that of imported smokeless gunpowder.

This also shows from the side that as long as suitable cotton is found, suitable smokeless gunpowder can be refined in a very short period of time.

"System, how many survival points are needed to create a catty of cotton used to make gun cotton!"

Without rushing to buy from the market, he opened the system panel and clicked on the creation interface. Su Mo first recorded the system requirements.

The price is not low, but not high either.

65 survival points can be exchanged for a catty of cotton used to make gun cotton, 300 points can be exchanged for a catty of produced gun cotton, and 520 points can be exchanged for a catty of developed smokeless gunpowder.

A bullet needs to be filled with about 2g of bullets, and a catty can be filled with 260 bullets. After conversion, it can be directly exchanged for gunpowder. The cost of a bullet is close to 2 survival points, which is too bad!

"No, I want to install bullets in the future. I must have a suitable production line. I will buy cotton directly. I will practice it myself!"

Chapter 164 Airdrop Is Released, Disaster Comes

Not to mention the rate of fire of the m1 automatic rifle, the follow-up Type 80 general-purpose machine gun alone has a rate of fire of about 1 rounds per minute.

The price of a bullet is 2 points, and 1 survival points are needed in 1400 minute. Who can resist this!

"If you want to build my own Great Wall of Steel, you must ensure that you have enough ammunition, otherwise everything is empty talk"

"Smokeless gunpowder must be taken down"

Making guns and assembling ammunition, Sumo has already walked 99 steps on this road, and he is only short of the last step.

Adhering to the tradition of the older generation of scientists in China, Su Mo has full confidence in persisting in this aspect.

But before that...

"Airdrop, airdrop, when will it arrive!"

Walking out of the basement door, I saw that the sky was cloudless and peaceful, and I didn't see any shadow of the airdrop.

The world's No.1 reward made Su Mo's heart itch, and he couldn't wait to see what kind of good things the game would release.

As if hearing Su Mo's resentful muttering, the game panel popped up by itself, and a friendly notification sounded.

[Record]: The current airdrop arrival time is 02:13:45 left

"Hey, will it take another two hours?"

Flipping through the game prompts and confirming that the time was decreasing, Su Mo was temporarily relieved and began to study how to purchase cotton.

You can get 65g of cotton at 500 survival points, and about 350g of smokeless gunpowder can be produced through a series of manufacturing.

After being loaded into bullets, only the survival point cost is used, excluding other labor costs and material costs. A bullet is worth 0.3 survival points.

Based on the rate of fire of the Type 80 general-purpose machine gun, the cost per minute is 1 survival points!

"Expensive! It's still too expensive! In the future, I must have a suitable cotton base to greatly reduce my loss. Otherwise, if this continues, I don't have to think about the shells in the back. Every single shot is thousands of survival points."

Not being on the home court of the earth means that there is no accumulation of materials. Even if you want to search, you can only go to the ruins.

A thing that can be easily solved on the earth, when it comes to the wasteland, it is necessary to build a series of production lines from scratch.

"It's still a matter of population. The more people there are, the more resources can be collected. At the same time, it can speed up the development of shelters and provide stronger disaster resistance."

Reluctantly finding out the root of the problem, and looking at the Oreos in the empty garage, who were still playing with sparks, Sumo could only open the trading channel and try to search for cotton.

Like wood, cotton is also a commodity that is in short supply for the winter and sells for a lot of money.

For the time being, it is unclear what kind of cotton can be used to make gun cotton, so Sumo can only use 65 survival points to make a catty first, and choose according to the cotton in hand.

This time, the goal is much clearer.

At the cost of 10 pancakes and 10 disaster points, I finally got back 20 catties of cotton.

The cotton can produce about 3000 rounds of ammunition after removing the wear and tear, which is enough for the early shelters, so you don't have to worry about ammunition.

Seeing that the time for the airdrop was still approaching, Su Mo didn't waste any time when he had a target, and went to the oil well first to replace toluene with ethylene.

Manufacture of nitric acid and sulfuric acid is already familiar, so it goes without saying.

It didn't take much effort. Sumo finished making the gun cotton in an hour. After carefully taking the wet gun cotton back to the storage space and putting it away, seeing how much time was left, Su Mo simply continued to prepare picric acid.

The benefits of making tools continuously for two days are obvious. When making picric acid, Su Mo can feel that his speed has increased significantly.

Especially while waiting for the reaction, energy can be allocated to the subsequent preparation, which is enough to show that the production level has been fully improved.

All the saltpeter, Su Mo didn't intend to keep it. Except for the amount of sulfuric acid and nitric acid used to catalyze the gun cotton, all the others were used to make picric acid in preparation for conquering the kobold castle.

It takes time to make it by hand, just like driving without feeling the passage of time. When the system prompts that the airdrop is coming, Su Mo stands up, walks out of the garage door, and waits quietly.

When the time comes, the airdrop belonging to No.1 in the world will arrive as scheduled.

The delivery method is not the plane that Su Mo imagined, and the box is dropped when passing the underground shelter. Instead, it adopts a more "advanced" express delivery method that Su Mo has seen several times.

Cotaicast.

A whole brilliant light streaked across the sky, and stopped when passing the underground shelter, and a box about one square in size appeared in Sumo's field of vision.

Seemingly having checked Su Mo's identity, Jin Guangyun trembled, dispersed a small cloud, and dragged the box to send it down.

When the light cloud was about five meters above the ground, it stopped, turning into light spots and shattering in exactly the same way as the ruins disappeared.