Li Zhi looked at the rifle in his hand again and said: "Now that the accuracy of the machine tool has improved, the next step is to tackle the research and development of metal shell fixed ammunition." ”

Cao Yu asked: "Lord Wang, what is a metal shell fixed ammunition?" ”

Li Zhi said: "The metal shell fixed ammunition is a rifle that combines the primer and the paper shell bullet and integrates all these things into a metal shell bullet. The metal shell fixed ammunition places the primer at the bottom of the bullet, and the soldier only needs to place the bullet in the bolt when shooting, and there is no need to reload the primer, and the rate of fire is faster. “

Cao Yu opened his mouth in surprise when he heard Li Zhi's words.

"Lord Wang, the rate of fire of the paper shell bullet of this King Jin-style rifle is already extremely fast, and the step of loading the primer is also omitted, isn't it three or four seconds to shoot a shot?"

Li Zhi nodded.

Cao Yu thought for a while and said, "Lord Wang, this is no longer necessary, right?" The rate of fire of the King of Tsu is already invincible in the world, and from the north to the south, no enemy can shoot at the King of Tsu! ”

Hearing Cao Yu's words, Zhang Yu snorted and said, "Chief Manager Cao, it's strange for you to say this, is this still too powerful?" ”

Li Zhi frowned and said, "Who said that the world is invincible." As our territory grows, we have more and more enemies. Without the development of more powerful rifles, we simply will not be able to open up enough living space for the Han people! ”

Cao Yu saw that Li Zhi's face was unhappy, and knew that he had said the wrong thing, so he hurriedly said: "The prince is far-sighted, and his subordinates are beyond his reach. The small ones are going to organize people to set up a research team and prepare for the trial production of metal shell fixed ammunition! ”

Li Zhi frowned and said, "I will draw the design of this new rifle tonight, and you will come to the palace tomorrow morning to get it." This metal-shelled rifle is very demanding in terms of production process, and you need to gather the most experienced craftsmen to form a team to work out the production process as soon as possible. ”

"If you encounter a difficult point that you can't solve in the process of tackling tough problems, come to me, and I'll see if I can help you find a solution."

Cao Yu hurriedly agreed.

Li Zhi asked again: "How is the production of bolt grenades?" ”

Cao Yu bowed his head and said, "Back to the prince, mass production has begun." ”

Li Zhi's face improved at this time, and he said, "Let's go, take a look." ”

Cao Yu hurriedly led the way in front and quickly took Li Zhi to the grenade assembly plant.

The factory uses an assembly line operation, and the final grenades are packed in large wooden boxes.

Cao Yu took out a grenade and showed it to Li Zhi.

"Look, this is the last grenade we produced."

Lee Sik asked, "Which firing method is used?" ”

Cao Yu looked at Li Zhi's face and said, "Lord Wang, at the beginning, we also wanted to use the firing pin and spring to fire the primer according to what you said, so that the spring inside the grenade is always in a state of accumulation, and the primer can be fired by gently pulling the safety bolt to release the spring outside." But then we found out that our process was not yet able to guarantee the safety of this firing method. ”

"The bumps back and forth during the transport of the grenade will most likely shake the spring open, and the grenade will explode on its own."

Li Zhi nodded when he heard Cao Yu's words.

The design of the first safety bolt grenade that Li Zhi handed over to Cao Yu was the style of the hand grenade of the US military in the 21st century. However, Li Zhi actually only knows a rough principle, and he doesn't know much about the details of the process of that kind of grenade. It is normal for Cao Yu to encounter problems in production according to Li Zhi's drawings.

Li Zhi asked, "Then you used the second method I said?" ”

Cao Yu replied, "Yes, Lord Wang." In the end, we used the second method you said, which was to install a pull bolt on the tail of the grenade. When a soldier uses a grenade, a forceful pull on the bolt triggers a primer inside the grenade to ignite the fuse. This design is relatively safe, and there is no risk of self-explosion during transportation. ”

Li Zhi nodded and said: "It doesn't matter if the technology is good or bad, the key is to apply." It's a good thing that you can choose the right production process. ”

Cao Yu heard Li Zhi praise him and rejoiced. He hurriedly walked to the end of the production line and took out a box of grenades and popped them out, and said, "Lord Wang, do you want to try the use of this grenade?" ”

Li Zhi nodded and said, "Go to the school field outside the factory to try it out!" Ask Zheng Kaicheng and them all to come and see, this will be the standard weapon of our Tiger Ben Army from now on. “

Li Zhi and Cao Yu walked outside the factory, and after a while, Zhong Feng and Zheng Kaicheng arrived on horseback.

The crowd stood on the school grounds, thirty meters away from a trench.

Zhong Feng looked at the box of grenades, his eyes lit up, and said, "Lord Wang, this grenade really doesn't need to be ignited to explode on its own?" “

Li Zhi smiled: "You can fry one yourself and see if you know?" “

Zhong Feng laughed and said, "Okay, I'll give it a try." “

He picked one out of the box that looked the best and checked it in his hand. Cao Yu hurriedly went up and told Zhong Feng how to use it.

Zhong Feng followed Cao Yu's instructions and pulled the bolt on the tail of the grenade.

However, this bolt is not like lighting a grenade fuse with a torch, and the grenade does not react at all when the bolt triggers the primer. Zhong Feng looked at the grenade in his hand, but he froze for a moment, not knowing if he had activated the grenade.

Cao Yu shouted loudly: "Throw it away!" “

Zhong Feng woke up like from a dream, shook his hand sharply, and threw the grenade into the trench thirty meters away. Only a boom was heard, and the grenade exploded as soon as it entered the trench, sending a huge shockwave spark into the trench.

Everyone looked at the smoke and dust stirred up by the explosion and marveled.

Zheng Kaicheng shook his head and said: "Lord Wang, after this grenade was ignited with a pull bolt, the scope of application has been greatly improved. In the past, we only used grenades during siege and behind tanks, according to the battle plan, with fire. On the march, because no one could hold a torch, the soldiers regarded the grenade as a useless iron ball. ”

"But nowadays with bolt-point grenades, our soldiers can use grenades at any time in an encounter."

Zhong Feng picked up another grenade, pulled it violently, and threw it out again.

This time, Zhong Feng didn't throw it accurately, and the grenade didn't go into the trench. The grenade exploded on the ground thirty meters away.

The flames impacted, and the smoke and dust from the shock wave shrouded an area of more than two meters.

Zhong Feng laughed and said, "Lord Wang, this grenade is really very different now. This is the real grenade! “

With a wave of his hand, Zhong Feng said: "Whether it is in trench warfare or street warfare in the city, this grenade with improved ignition method is a sharp weapon to kill the enemy!" “

Li Zhi nodded and said, "Hurry up and start mass production of this grenade, and equip our more than 200,000 soldiers with three new grenades." “