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The presence of His Majesty the Emperor personally caused the members of the Ordnance Research Department to be extremely emotional.

In the test site outside the city of Der Spiegel, the roaring sound of the gunfire continued to sound, and the targets of the cannons set up in the distance were blasted one by one, demonstrating the power and precision that satisfied Luo.

Just now, the metal plate three hundred meters away has been bombarded with a very accurate shot.

At that moment, all the members of the Ordnance Research Department had been unable to control and cheered loudly.

This is a new breakthrough, which proves that their cannon of Wannian civilization, in the case of ensuring the power and hit rate, the effective range has officially extended to 300 meters!

In the shelling test, the four metal plates that were bombarded were quickly sent to the front of Luo.

The members of the Ordnance Research Department, headed by Ye Hao, also gathered around and wanted to further confirm the power of the shelling.

These metal plates, when viewed from a distance, were not big, and when they were delivered to the front, they found that the block was similar to a small wall.

The piece of metal that stood at 100 meters is undoubtedly the most damaged.

The whole piece of metal has been penetrated! At the same time, there are obvious cracks scattered around.

The one at 200 meters is slightly penetrated.

The piece at the two hundred and fifty meters was not broken, but a whole piece of metal was also distorted.

The piece at the last three hundred meters is obviously the most complete, but the surface has also been significantly deformed by shells.

Exhaling a long breath, Luo Ji kicked the last piece of metal plate with his foot and felt the hard touch of the feedback. Undoubtedly, Luo Ji was satisfied with the power of this cannon.

Three hundred meters away, the metal plate can be bombarded and deformed, and the destructive power caused to the city wall is absolutely considerable.

“How stable is this cannon? How much is the production cost?”

In the face of this issue of Luo Ji, Zhao Lei, the deputy director of the Ordnance Research Department, was handed over with respect to a document in his hand.

After turning over two pages, Luo's brow wrinkled slightly.

This cost is really not cheap. Although it can stabilize production, the production cycle is obviously longer than the three-bow bed and the returning cannon.

At the same time, the gunpowder and artillery shells as consumables are obviously more than the stone bombs of the heavy-duty arrow and the returning gun...

Simply put, a word, expensive!

Put these three pieces of siege instruments as firepower output together for comparison.

There are undoubtedly advantages in the range of the three bows.

And back to the cannon, it is less expensive, and the range is already half a catty.

At the same time, the attack trajectory of the return gun is obviously parabolic with a large arc. In other words, in terms of precision control, it is not as good as a cannon, not to mention the power...

After thinking twice, Luo Ji called Ye Hao.

“How long does it take to increase the effective range of the cannon to more than 400 meters while ensuring the power and precision?”

Faced with this problem, Ye Hao's two willow-like fine eyebrows suddenly wrinkled.

"Well, this is not true."

Well, Luo Ji also knows that this kind of thing is not to say that he wants to strengthen, it can be strengthened.

Researchers need inspiration and need to find a breakthrough.

After this test, it was possible that Ye Hao was on the way to the city halfway, and suddenly there was a flash of light, and there was another idea.

But it is also possible that it has passed for a year and a half, and there is no movement.

The current mood of Luo Ji is also very complicated. He is afraid that Ye Hao has no inspiration, and he is afraid that Ye Hao suddenly has a flash of light.

He will now issue orders and begin mass production of the cannons.

As a result, after two or three months, the new model improved by Ye Hao came out again.

Should the Luo series be crying or laughing?

This feeling is really very painful.

Returning to the palace, relying on the Luo series in the hall of the government, after a good entanglement, a shot of the thigh, made up his mind.

"The order is passed down, and the Ministry of Armaments is stopped from continuing to produce back to the cannon and the three-bow bed. As for the cannon..."

Having said that, Luo’s voice paused. He is now calculating the numbers in his mind.

How can he be accompanied by six cannons on the four sides of the southeast and northwest of his Wanbian civilization? In addition, other cities in the border area, in view of the unexpected situation, must also be equipped with at least four cannons, as well as other cities, it is best not to fall.

In addition, the cannons brought at the time of the expedition must also be counted...

After a while in the skull, Luo Ji squinted and slowly opened his mouth...

"Wang Kai, you personally ran a squadron of armor manufacturing, let them go to the research department to draw the design drawings, and start making the latest cannons from today. As for the quantity, let them make a hundred cannons to come out and say, at the same time, Go to Goblin Technology and let them know about a cost-reduced version."

"Fucking the job!"

After Wang Kai responded, he walked quickly toward the palace.

For this batch of cannons, Luo Ji is undoubtedly valued.

In order to wait for this batch of cannons, he also deliberately settled for a while.

After months of missing the invasion, John Saar’s mood was not only a little relaxed, but the pressure on his body became stronger than before.

He knew in his heart that Luo Ji had already clarified the intelligence of his four sides, and that the other party had no action, and he was bound to prepare.

This feeling, for the invaded party, is terrible ~lightnovelpub.net~ between the thoughts, John Saar bit his teeth and made a decision...

System Tip: Europa player ‘John ​​Sal’ is invading your civilization!

Hearing the sound of this system prompt, the brow picked a pick.

The next second, the heart is already clear.

John Saar, is this to touch his bottom? Or, he wants to take a look at what he is doing in the past few months.

Even if you don't know, it's good to add a little plug to Luo.

In short, I don't want him to quietly develop.

But Luo Ji will let him do it?

Just as he used to collect intelligence when he invaded the dwarf civilization, he basically did not move the same.

Like this tentative battle, the threat to his borders is extremely limited and not at all fearful.

John Sal wants to fight, then let him play.

Luo Ji, located in the main city, continues to develop his development.

Anyway, this kind of battle, as a defender, he will not be able to eat.

As for John Saar, will he suddenly attack it all at once?

impossible! This is a cautious person. Before he figured out what Luo Ji wants to do, he will not be tempted to break the risk of defeating the soldiers and attack the border of Wanxiang civilization!

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(End of this chapter)