Bright Sword: Starting from the Improved Grenade

"Where are the people! Where are the people! Brother Tianyang, where are you!"

Ten miles behind the arsenal, in Taihang Mountains, in a cave, Zhao Tianyang, who was squatting on a tank with Chang San and Li Tie, helplessly dropped the wrench in his hand.

"Old Li, I'm here, stop yelling!"

"Hey, isn't this cave getting bigger? There are other caves dug inside. If I can't find anyone, I have to shout."

Li Yunlong, who came here following the sound, explained embarrassedly that it was he who asked someone to dig this cave, but when he came here today, he found it had been completely changed.

Not only has it become taller and wider, it has also become deeper, and there are other caves inside, which is really confusing.

"It's not good to be bigger! Don't you like big ones?"

Zhao Tianyang replied unhappily.

"Of course it's better to be bigger... You are installing a tank gun!!!"

Li Yunlong was just about to tell a dirty joke to cheer himself up when he looked up and discovered that there was a huge tank gun placed upright in the empty space in the middle of the tank.

"Nonsense, didn't I tell you that we have successfully developed a tank recoil machine? What's so strange about installing a tank gun?"

Li Yunlong was so angry that he kept silent for a long time before saying, "I don't understand these things. I thought I could just build a cannon or something."

"Yes Yes Yes......"

Zhao Tianyang said perfunctorily, and seeing that Li Yunlong had nothing important to do, he continued to call on Li Tie and Chang San to start competing with the tank gun.

Seeing this, Li Yunlong curled his lips, took out a cigarette and started smoking while waiting.

Time passed by bit by bit as the cigarette burned. Just when Li Yunlong was about to smoke his fourth cigarette, Zhao Tianyang put down the wrench and said, "Okay, that's enough for today!"

"Ah, is this the end?"

Li Yunlong looked up and found that the tank gun was still drooping and had not stood up, and he couldn't help but be surprised.

"It's over. The rest will come tomorrow."

Zhao Tianyang took the face towel handed over by Chang San and wiped his hands, then looked at Li Yunlong jokingly: "Besides, you can't wait any longer, right?"

"Nonsense, how can I not wait? Look, I didn't even rush you!"

Indeed, Li Yunlong wanted to see the new weapon designed by Zhao Tianyang as soon as possible, and he also wanted to see Zhao Tianyang completely manufacture the tank.

So he was feeling conflicted and could only smoke there and wait patiently.

"Ah, yes, yes.....You are the most patient. Let's go to the shooting range."

As he said this, he took the lead and walked out of the cave.

"Wait for me!"

Li Yunlong, who had just said there was no hurry, threw away the cigarette in his hand and chased after him.

The shooting range is right next to the arsenal, close to Taihang Mountains. It was newly built and is specifically used for testing weapons.

"Isn't that a Type 38 rifle? Didn't they say they were testing new weapons?"

Looking at the two Type 38 rifles brought by an employee, Li Yunlong asked in confusion.

"That's used to test our newly made smokeless propellant."

Afraid that Li Yunlong might not understand, Zhao Tianyang explained carefully.

"Because I don't know the difference between the propellant made by a regular factory and our homemade propellant, I still have to test it to feel at ease."

"You know, if you put too little propellant, it will affect the initial velocity of the bullet, which will in turn affect the accuracy and power. If you put too much propellant, it will not only be a waste, but more importantly, it will cause the chamber pressure to be too high, shortening the life of the gun. In more serious cases, it may even cause the chamber to explode."

"really."

Li Yunlong nodded in agreement: "Then how are you going to test it?"

"It's simple. Do you see the lead box hanging in front?"

Zhao Tianyang pointed to the wooden frame that had just been erected by the employees, on which hung a lead box: "The lead box is full of soil, and we have already weighed it."

"Later, one Type 38 rifle will use Japanese bullets, and the other Type 38 rifle will use self-made bullets. With the same amount of powder and the same distance, they will take turns shooting at the lead box."

"Then, based on the swing amplitude of the lead box, we can calculate and compare the speed of the bullet and the warhead."

"Oh~~~"

Li Yunlong looked like he had learned something: "What about chamber pressure?"

"The chamber pressure test is a little harder than the initial velocity test, but not much. Do you see this gun?"

Zhao Tianyang took the discarded Type 38 rifle handed over by an employee and said, "I drilled a hole through the rifle's chamber, facing the shoulder of the bullet shell."

"A small piston was installed on it, and a standard copper column (two identical copper wires cut from a very thick copper wire) was clamped on the outer end of the piston."

"The bullet used for testing also has a hole punched in the shoulder of the cartridge case and is placed directly opposite the small piston. When the gun is fired, the high-pressure gas in the chamber will pass through the small hole, the piston, and compress the standard copper cylinder."

"We measure the size of the compressed standard copper cylinder, and then we can calculate and compare the chamber pressures caused by the two propellants."

"I see. Otherwise, you have to be a college student to know so much!"

Li Yunlong's scalp tingled, and he felt that he could no longer store the knowledge he had learned today.

"Let's start testing."

After explaining to Li Yunlong, Zhao Tianyang pulled Li Yunlong back and handed the testing site to the employees.

Although this test is relatively safe, what if something goes wrong? It is better to leave it to the employees, who are all ready to sacrifice at any time.

“Da da…da da…da da…”

“Da. Da. Da….”

After testing, the arsenal's homemade smokeless propellant was found to be similar to Japan's smokeless propellant and was considered a qualified product.

"Hahaha, that's great, we can produce our own bullets in the future!"

After learning the result, Li Yunlong smiled excitedly.

"Haha, don't be too happy, there are still many weapons to test!"

Zhao Tianyang persuaded with a smile.

"Let's get started. I, Old Li, can't wait any longer."

With a good start, Li Yunlong couldn't wait to see other weapons.

"Then bring them all up."

Zhao Tianyang waved his hand behind him.

Soon, shotguns, cannons, elm cannons, conscienceless cannons, and engineer shovels were brought up by the employees one by one.

"Oh, yes, yes!!"

Li Yunlong ran back and forth, looking at this and that, as happy as an 800-pound fat man.

"Quick, Tianyang, introduce it to me! I always feel like something is missing without knowing the specific data."

"it is good."

Zhao Tianyang brushed aside Li Yunlong's big hand and pointed at the shotgun placed on the long wooden table.

"This is a shotgun modeled after the American Winchester M1897. It is 996.95mm long and weighs seven pounds and two ounces. It uses No. 20 shotgun shells."

"Including the bullets in the barrel, it can fire six times in total. Only one shot is needed within 20 meters to kill a person."

"nice one."

Li Yunlong liked this powerful weapon the most, so he immediately picked up the silver-white shotgun in front of him.

With a "Kua" sound, Li Yunlong pulled the handguard under the shotgun and assumed a shooting posture.

"It feels good. Can I try it with live ammunition?"

Li Yunlong looked at Zhao Tianyang.

"Yes, but we need a professional gun inspector."

Zhao Tianyang knew that Li Yunlong wanted to fight in person, but was that possible? He didn't even have the chance to be the first to test the gun.

"alright."

Seeing the determination in Zhao Tianyang's eyes, Li Yunlong put down the shotgun with regret and touched the light brown buttstock: "Hurry up and ask the gun inspector to come over. I can't wait any longer."