There are a total of twenty blue-black projectiles in the storage bag, which are smooth and as big as glass beads.

Xia Zuo raised his eyebrows slightly. How heavy can such a small projectile be?

The hidden weapon he expected was at least about 2 kilograms, but Chen Liuyun knew what he asked for, and there was no reason that it would be far from it. He thought of this and picked up a blue-black projectile, and then his face became a little subtle, and the weight of the small projectile was beyond his imagination.

"How heavy is this actually?" Xia Zuo's eyes revealed a strange look.

"2.5 kg." Chen Liuyun gave the accurate number.

"2.5 kg." Xia Zuo felt a little incredible, but he also felt that it was about the same weight, "How did this be done?"

"This projectile is mixed with a lot of metals." Chen Liuyun said: "The most critical one is called Xuanyin metal. This metal comes from the vortex gate. Its weight and hardness are amazing. The size of the fingernail is as big as thirty kilograms."

The magical vortex gate... can be said to have changed the world. Xia Zuo was amazed, "Then why not use it to refine bullets?"

If the bullet weight is sufficient, coupled with the bullet firing speed, the kinetic energy of a bullet will reach a very amazing level. It is probably difficult for low-level warriors to defend against such lethal bullets.

"Not no one has tried it, but if such a heavy bullet is wanted to fire it at high speed. When you go out, it has high requirements for guns. This is a problem. The problem is..." Chen Liuyun paused for a moment, "The cost is too expensive. Even if it is not mass-produced, it is only used for special purposes. A bullet like this is still too expensive. Do you know how much your projectile is worth? One million star coins!"

One million star coins!

Xia Zuo looked at the projectile in his hand and his heart trembled. It was ridiculously expensive. What is gold? Three such projectiles can be exchanged for a house!

It is not easy to recycle the bullet when it is fired, and the cost of killing is too high!

"I found a good friend to help me refine this. I didn't charge any money and only calculated the price of the material cost." Chen Liuyun added.

Twenty projectiles cost 20 million star coins, and with the storage bag, it requires 30 million star coins. Xia Zuoxin sighed in his heart that it is really expensive, but he was very satisfied. His only disadvantage is that it is expensive.

Xia Zuo didn't say much, but transferred the money to Chen Liuyun. Chen Liuyun was not polite and took the money directly. However, he still felt a little regretful. If Xia Zuo had no money, he could give Xia Zuo the storage bag and these twenty projectiles.

This was his original plan, and it was for this reason that he built such an expensive hidden weapon without discussing with Xia Zuo in advance.

Xia Zuo weighed the projectile in his hand, one million per pill, and if he really beat it, he must have to find a way to pick it up, otherwise he would be able to vomit blood.

"This hidden weapon does not have a name yet. Do you want to give it a name?" Chen Liuyun asked with tea.

“Is this necessary?”

"It depends on what you like."

Xia Zuo hesitated for a moment and said, "Just ask it to kill Tianmaru."

Tian is naturally Li Wentian's field.

"Kill Tianmaru?" Chen Liuyun said in surprise: "What a strange name, but if you asked me to find such a heavy hidden weapon for you, can it be really useful?"

The most important thing is the rate of fire. If the rate of fire cannot be increased, then Katamaru will not be able to exert its due lethality. At the beginning, Xia Zuo said that he had a way to solve the rate of fire, but did not say how to solve it.

How to solve it?

"As long as you practice more, there will be no problems." Xia Zuo gave the answer.

Chen Liuyun: “…”

Now that I can't find the breathing rhythm, I just happen to be able to practice my hidden weapon. Xia Zuo came to the archery field and took out a Khata Maru, but he couldn't do it because the target was vulnerable. Khata Maru flew far away, and it was too troublesome to find it back and forth, and it was impossible to test its power.

He told Chen Liuyun about his concerns.

Chen Liuyun thought for a while and said, "There is a replaced steel door in the equipment library that can be moved here as a target."

The steel door that Chen Liuyun said was thirteen centimeters thick.

Xia Zuo was stunned when he saw this door. He thought to himself what treasure is in Liuyun Martial Arts Museum and can use the steel gate of such a thickness?

Of course, Xia Zuo just thought about it, but he didn't ask. If he asked, he would be suspected of inquiring about the secrets of Liuyun Martial Arts Hall. He had already guessed that Liuyun Martial Arts Hall and Chen Liuyun might have hidden many unknown secrets.

Xia Zuo could bear the steel gate weighing hundreds of pounds alone, but of course he didn't have one person to carry it. Tong Qinli and Chu Zidong both came to help move the steel gate to the archery ground.

But there is another difficult question, that is, how to fix the steel door?

Finally, everyone buried the steel door in the soil, and then took several wooden pillars to hold it behind it before fixing it in place.

After everything was solved, Xia Zuo walked thirty meters before he stopped.

Thirty meters, even a first-level warrior who is good at speed, it takes at least five seconds to get close from reacting to running. This has not included the possibility of Xia Zuo pulling backwards, so thirty meters should be a safer distance.

There should be no problem with transmitting hidden weapons at such a distance.

The steel gate has been sprayed with circles of pigment, like a target of arrows.

Xia Zuo threw the first killing ball. With a clang, the corner of the iron gate was hit, which was too far from the accuracy.

However, this is the first time Xia Zuo has used such a hidden weapon, and it is not surprising that there is a difference in accuracy. His method of launching hidden weapons was also taught by Chen Liuyun.

This hidden weapon technique is said to be from the old era master who was good at launching locust stones. The flying locust stones are somewhat similar to his Khatian Maru. They are both relatively small hidden weapons. Later, they have undergone some improvements in the Spiritual Qi, but later there are fewer people using hidden weapons, so this hidden weapon firing technique becomes unpopular and unknown.

It was not surprising that Xia Zuo failed to hit the first Khata Maru, so he shot again. He shot the second Khata Maru, which hit the bull's eye.

Chu Zidong quickly applauded. This was a 2.5 kilogram thing, and it was very rare to have such accuracy in her opinion.

"No, it's too slow." Chen Liuyun shook his head and said, "It's difficult to hit a warrior with such speed."

Without speed, no matter how accurate it is, it is difficult to pose a threat to warriors.

Xia Zuo threw the discus only to score 78 meters. Chen Liuyun couldn't imagine how Xia Zuo should ensure the rate of fire of this hidden weapon that was heavier than the discus.

"Maybe he can only allow this hidden weapon to exert its due power when he becomes a warrior." Chen Liuyun added that Xia Zuo's ten basic items are perfect. Once he becomes a warrior, his strength will definitely increase sharply, and he will have enough strength to increase the speed of Killan Wan.

Xia Zuo in the distance also raised his eyebrows slightly, and he continued to throw out the third killing pill.

With a swish, Katamaru hit the bull's eye on the steel gate, and the sounds of banging and then mixed together. The steel gate fell to the ground with a bang and the soil was flying.

This blow suddenly broke the wooden pillars supporting the steel gate.

Tong Qinli and Chu Zidong were both shocked. They just saw only the vague shadow of Kata Maru, and the rate of fire was a bit fierce.

Chen Liuyun's face was dull, but he was the first to walk out quickly, and Chu Zidong and the others quickly followed.

The master and apprentice walked to the fallen steel gate and saw the Killing Ball embedded in the bull's eye, which looked particularly dazzling.

You should know that the two previous pills fell directly. The Killing Wan has increased at a speed, and the impact is so powerful that it can be embedded in the steel bull's heart.
Chapter completed!