Chapter 8: Sulfur, Nitrate, Carbon, and Sugar - Big Ivan

Half a month later, Li Fei was practicing Su Zhen, the foundation of swordsmanship, with a 300-jin tungsten steel rod in his own training ground.

The strength of 300 jin is close to the strength of a second-ring great soul master of the strong attack system. It is conceivable that Li Fei's physical fitness has reached the level of a great soul master. As long as he trains for another year and his mental power is condensed enough, the first ring of a thousand years is not a dream.

As a time traveler, Li Fei is not pedantic. He only wants to use martial arts to fight, so he plans to use swordsmanship to fight when the martial arts attack power is not strong in the early stage.

The swordsmanship in this world involves soul skills, which are basically in the hands of the family and the sect. Even if the Li family has money, it is difficult to buy it. They can only keep doing Su Zhen, which was called the foundation in the previous life, and also collected some fighting swordsmanship in the army to enhance their future combat capabilities.

Li Fan next to him also held an iron rod, but it was only 200 jin. He practiced the stick method collected by Li Fei, and danced vigorously. Every time the stick was smashed, there was a sound of breaking through the air, which showed that his current strength is not weak.

"Come on, Li Fan! My brother didn't complain of being tired when swinging a 300-jin iron rod. I only weigh 200 jin, so I can't train for less time than my brother!"

Feeling the pain in his arms, Li Fan kept cheering himself up in his heart, and his eyes looking at Li Fei were full of admiration, respect and envy.

The training lasted until noon. After the two of them finished the nutritious meal prepared by Shen Chenyan, Li Fei asked Li Fan to take a medicinal bath, and he came to a small room in the northwest corner of the manor.

Pushing open the door, what came into view was a small workbench, on which were placed some grinding and filtering equipment, as well as a lot of black powder and round iron balls.

"After all, I was a student of a first-class university in my previous life. Even though I have returned the knowledge to the school, I still remember the words of Big Ivan very clearly: one sulfur, two saltpeter, three charcoal, and a little white sugar."

"It will definitely succeed this time!"

Li Fei was confident, skillfully stuffed the black gunpowder into the iron ball, stuffed some iron filings, picked up the white sugar that had been prepared long ago, and poured in twice the amount of black gunpowder. This was the result of his many tests!

Carefully sealing the thin iron ball, Li Fei weighed it in his hand, made two more, and quickly came to the training ground, looking at the scarecrow target in the distance.

Soul power was injected into the iron ball, compressed into a point, and thrown hard near the scarecrow. The soul power burst out instantly and ignited the gunpowder inside.

"Boom!"

A huge explosion sounded, resounding throughout the Li Mansion, and the ground trembled slightly. Li Fei did not stand firmly and sat on the ground. A strong smell of gunpowder came over. Li Fei looked at the explosion. There was a two-meter diameter pit left at the place of the explosion. The scarecrow disappeared, replaced by grass clippings all over the ground.

A figure rushed from a distance. It was Li Ming who heard the sound.

"Fei'er, are you okay?!" Li Ming exerted the speed of the soul king to the extreme. He flashed to the side of Li Fei in two steps and asked worriedly.

"I'm fine!" Li Fei shook his head, pointed at the big pit in the distance, and showed an excited look: "Dad, I succeeded!"

"Success?! It's the bomb you mentioned before!" Li Ming said uncertainly.

"Yeah!" Li Fei nodded frantically: "Dad, show me how powerful this thing is, so I can use it as a reference!"

Li Fei's experience is still limited, and he can't estimate the power of this soul power mixed version of the grenade he made. He needs Li Ming to use it as a reference.

"Okay, then throw one out for me to see!" Li Ming also wanted to see the power of the weapon made by Li Fei, which could actually blow up a two-meter pit.

"Dad, watch it!" Li Fei was confident, input soul power into the homemade grenade, and threw it far away. With a "boom", a huge pit appeared in the original place, and pieces of iron filings flew in all directions at an invisible speed.

One of the fragments shot directly near Li Ming, leaving a large bullet hole.

Drops of cold sweat dripped from his forehead. Li Ming mechanically turned his head to look at Li Fei, and stammered: "Fei'er... this thing... was really made by you..."

"Yeah!" Li Ming asked seriously, "Dad, how powerful is this grenade?!"

"Your dad has seen a Soul Saint before. The power of this thing should be comparable to the ordinary soul skills of a Soul Saint. If a Soul Saint is not prepared, he should be seriously injured!"

Li Ming took a few deep breaths to calm himself down, thought about it, and gave the answer according to the strength in his memory.

"You are just a Soul Saint, but you are not as good as Tang San's hidden weapon. What a failure!" Li Fei murmured in a low voice with some dissatisfaction. A completely mechanical hidden weapon, the Buddha's Wrath Tanglian, can kill several Soul Saints, but his grenade filled with gunpowder and soul power is not as powerful as it.

In fact, he also wanted to know what kind of mechanism can make some small blades shoot out with such power to kill Soul Saints. Even if the material of the blade is good, if the kinetic energy is insufficient when it is shot, it can't hurt people!

It can only be said that it is worthy of being a sect in the world of martial arts. There are always some knowledge that people cannot understand.

"Fei'er, what did you say?!" Li Ming did not hear clearly and asked in confusion.

"Nothing, just a little disappointed!" Li Fei shook his head quickly.

"You are disappointed with the power. If we prepare a few more at one time, the Soul Saint will probably be blown to death!" Li Ming was stunned, and he couldn't understand his son's thinking.

"Forget it, Dad won't talk about this! I will give you the production method later, and you can ask someone you trust to make some in case of emergency."

"Okay, I will arrange it now. With this thing, we can go a little deeper when we go to the Xingdou Great Forest to hunt soul rings."

Seeing that Li Fei was unwilling to say more, Li Ming didn't ask more.

The two came to the workshop, Li Fei wrote a copy of the grenade manufacturing method to Li Ming, and told him some precautions for the storage of gunpowder, and then went back to his bedroom to continue studying the way to open the meridians.

"The grenade has been solved. In the next period of time, I will concentrate on practice and research, and prepare for the soul hunting one year later."

With a big killer like a grenade as a trump card, many dangers in the early stage can be avoided, which allows Li Fei to put his mind at ease and concentrate on practice and research on how to become stronger.

Li Ming took the manufacturing method and found several craftsmen. According to Li Fei's instructions, he asked them to start manufacturing. He did the last step of loading himself. The craftsmen didn't know the proportions. In the end, they not only made some small ones, but also made several with a diameter of one meter.

After putting these grenades in the storage space, Li Ming took all the craftsmen's families over and asked them to do some odd jobs in the manor.

Several craftsmen also knew the reason why Li Ming did this, and they all swore that they would never disclose the manufacturing process of the grenades.