After giving Ye Xuan a month's long vacation, the follow-up research on gunpowder certainly couldn't stop there.

Luo Ji handed over the recipe copied from the wall to Zhao Lei.

In the case that the minister is so out of tune, Zhao Lei has been a deputy minister for so many years, and he is obviously very stable in doing things.

It was clear that the formula for this gunpowder could not be put into production immediately.

Although the power of that explosion has been seen once.

But if you want to make a large number of deployments, you need more detailed data and a consistent success rate.

This kind of thing is suitable for Zhao Lei to do unexpectedly.

Of course, in order to avoid disturbing the people caused by the sound of explosions from time to time, Luo Ji temporarily moved the test site of the Ordnance Research Department to outside the city.

Then time flew by, and a month later, Ye Xuan, who was 'released from prison', decisively found Luo Ji with a grudge.

"Your Majesty, what about my reward?"

In this regard, Luo Ji decisively rolled his eyes.

"The office building of the Ordnance Research Department was bombed by you, and it is still being rebuilt, and you still dare to come to me to ask for a reward?"

Hearing this, Ye Xuan's face obviously flashed with a trace of emptiness.

Then he hurriedly shook his head vigorously and played a trick.

"I don't care! Your Majesty, you said that as long as I work out the formula for gunpowder, you will give me a new weapon blueprint! I've researched it now, give it to me, give it to me, give it to ......me, give it to me

Looking at Ye Xuan, who was standing below, almost rolling on the ground, Luo Ji suddenly felt that his skull hurt a little.

At the same time, in the month of giving Ye Xuan a long vacation, under Zhao Lei's full supervision, the stable formula of gunpowder has indeed been figured out.

In the current situation, the research of weapons and equipment should hurry up to catch up.

Thinking of this, Luo Ji sighed heavily.

Then he took out a thick stack of blueprints that had been prepared long ago.

This stack of design drawings is the design plan of the gold-level stone shooter that he opened the golden treasure chest before.

Ye Xuan, who saw the design, was like a cat that smelled fish, both eyes were shining, and he wanted to take the design away when he rushed up.

Thanks to Luo Ji's quick eyes, he hurriedly raised the design drawing in his hand to the top of his head, and said with a smile on his face while avoiding Ye Xuan's grasp......

"Let's talk about it first, if you make any more trouble this time, I'll give you a three-month long vacation, understand?"

Listening to the three-month-long 'long vacation' in Luo Ji's mouth, Ye Xuan's whole little face turned pale decisively.

"Your Majesty, are you the devil?"

"Did you hear that?"

"Well, I heard you."

"Take it."

As he spoke, Luo Ji handed the stack of design drawings he held in his hand to Ye Xuan.

Ye Xuan, who took over the design drawing, naturally looked through it on the spot.

On the design drawing, the shape of the stone cannon is undoubtedly new to her.

After flipping through the two pages, Ye Xuan couldn't help but ask out loud......

"Your Majesty, is this an upgraded version of the bed crossbow?"

Hearing this, Luo Ji raised his eyebrows slightly, and it was really fortunate that Ye Xuan could see the shadow of the bed crossbow from the stone cannon.

However, this is not entirely true.

"If anything, it should be a weapon that combines the characteristics of a bed crossbow and a catapult."

The positioning of the bed crossbow and catapult itself is equivalent to the ancient siege cannon.

The characteristic of the bed crossbow is the penetrating force.

Catapults are characterized by the destructive power of blunt blows.

The cannon, on the other hand, combines both of these characteristics at the same time.

However, for the stone cannon, Luo Ji didn't have much expectations at all.

At best, this is just the key for his civilization to step into the threshold of 'firearms'.

It has been said before that the range of the stone cannon is not as good as that of the three-bow bed crossbow and the return cannon.

At the same time, the accuracy is quite poor.

Instead of mass-producing stone cannons, it would be better for him to continue with the three-bow bed crossbow and return cannon.

But after that, Luo Ji quickly figured out one thing.

What he fired was indeed the blueprint of the stone cannon.

But there is no rule that he can only build stone cannons!

He is a modern person, can't he improve on this basis?

Early cannons, collectively known as smoothbore guns.

The origin of the name is due to the fact that the inside of the barrel is smooth.

Stone-shooting guns, apparently, also scored in the category of smoothbore guns.

The common problem of smoothbore guns is that they have a short firing range and poor accuracy.

But Luo Ji can improve on this point.

Based on the design of the stone cannon, wouldn't it be enough to directly improve it into a rifled gun?

The most important feature of rifled guns is that the inside of the barrel is engraved with rifling.

Therefore, when the cannon fires, the flying shells will rotate along the trajectory of the rifling on the inside.

So that the shells that are not very stable can achieve the effect of stable flight.

At the same time, the range and accuracy of the cannon have been significantly improved!

Of course, if you want to make the barrel of a rifled gun, you have quite high requirements for the manufacturing process and technical ability.

There is also the structure of the entire gun body, due to the change in the way the gun is fired, the whole structure has to be changed.

However, Luo Ji is fearless, he has the technical and technological power of both humans and goblins in his hands, as well as Ye Xuan, a top ordnance master.

Can this still stump him?

Between the thoughts flying, Luo Ji directly referred to the design drawings and gave Ye Xuan a simple explanation.

"This part is called the barrel, this is the shell, and this part inside is used to fill the gunpowder."

"However, on this design drawing, I missed one point before, the internal design of this barrel will cause the accuracy and range of the shell to become too poor, so ......"

As he spoke, Luo Ji quickly took out a design drawing on his desk.

The design was obviously drawn by Luo Ji himself, and the main content was the internal structure of the rifled gun, as well as some of his ideas for transforming the overall structure.

However, the structural design of the cannon, after all, is sensitive information, and there is not much information that can be found, so to this point, he is obviously trying his best, whether he can rely on the limited information and ideas he provides to make the rifled cannon, it depends on Ye Xuan's ability as an ordnance master.

Ye Xuan, who took over the design drawing, quickly flipped through it.

"I see, if you make such a trajectory on the inside of this barrel in advance, when the shell flies out, it will naturally rotate along these tracks, and the shell that rotates at high speed will become more stable."

While speaking, Ye Xuan, who was excited, couldn't help but stretch out his hand and gesture.

"This seems to be a very simple design, but it can effectively increase the range and accuracy of the shell, Your Majesty, you are really amazing, you can come up with such a design!"

“……”

"But I think if you want to do this, the shape of the shell should also be changed slightly, and the surface should also be marked with the corresponding trajectory, so that the effect can be better, how about the cone?"

“……”

"And this structure over here, I always feel that something is wrong, Your Majesty, what do you say?"

“……”

Terrible, is this the difference between a top genius and a mortal?

The update is sent, thanks to the book friends 'Dapeng', 'Smoke and Cold Forest Light Dust', and 'Unhealed Wounds' monthly passes!

(End of chapter)