It is about 300 nautical miles away from Branch 16.

On a small uninhabited island.

At this moment, a top-secret test is being conducted here.

A large number of surveillance phone bugs were deployed on it, covering almost all areas.

At the same time, a large ironclad ship stopped about one kilometer away from the island.

Inside the ship, Sean was leading Robin, Lucci and a group of people in white coats, looking at the pictures on a large number of screens in front of them.

A pirate in prison uniform is exploring the island.

"Lieutenant General, the No. 7 special bomb has been loaded, and the naval gun has been calibrated!"

"Then let's start, order Usopp to fire!"

"Yes, Lieutenant General!"

A few seconds later, with a loud bang, a special cannonball was instantly blasted out of one of the barrels of the main gun on the bow of the ship, and landed hard somewhere on the uninhabited island less than 3 seconds later.

The horrific explosion immediately overturned a large number of trees near the explosion point.

Fortunately, there was not much deviation in the explosion point. The distance from the monitoring phone bug was nearly 100 meters, so the picture could still be transmitted.

However, the sky in the picture was filled with dust at this moment, making it almost impossible to see.

After more than a minute, the scene was barely visible.

"Lieutenant General, the pirates 10 meters away from the explosion point have been confirmed dead and have been reduced to pieces."

"The pirate 30 meters away from the explosion point still shows slight signs of movement and is judged to be seriously injured."

"The pirate who is 50 meters away from the explosion point can only move but can only crawl. His injuries are not serious, but the sea tower stone embedded in his body has caused him to be extremely weak."

"The pirate 80 meters away from the explosion point was hiding behind a tree and seemed to have suffered no other injuries except for some shock."

"The pirate 100 meters away from the explosion point was knocked to the ground by the shock wave, but he was still able to get up and escape. His injuries were very minor."

"Preliminary conclusion is that the effective killing distance of fragmentation bombs against ability users should be about 50 meters, and at a position of about 100 meters, it has almost lost its lethality."

Based on the scene on the screen, Leitus on the side immediately made a preliminary analysis.

The cannonballs fired just now were no ordinary cannonballs.

But under Sean's leadership, the scientific research institute developed a new type of artillery shell, a fragmentation shell!

Pure gunpowder damage is actually not very lethal in the pirate world.

After all, the people in this world are physically much stronger than the humans in Sean's previous life.

Even if he is just an ordinary person, in terms of physical fitness alone, he is definitely several times stronger than the military king in Sean's previous life.

Not to mention those pirates with abilities who are much stronger than ordinary people and have eaten devil fruits.

Therefore, the idea of ​​fragmentation bombs was proposed by Sean.

As usual, Sean doesn't understand technology, so he just proposed an idea.

What if the sea floor stone is broken into a large number of micro-fragments and then loaded into a cannonball, so that after the cannonball explodes, the countless fragments can be released, forming a large-scale attack with no blind spots?

Although Sean only proposed an idea, it was enough.

As I said before, scientists in the pirate world never lack abilities, and their abilities are even much stronger than those of Sean's previous scientists.

But what they lack is ideas and ideas.

No, fragmentation bullets have been studied.

Facts have also proven that the use of fragmentation bullets is extremely lethal to people with abilities.

A large number of fragments enter the body, and even if you can resist it with a strong body, it will definitely make you lose your fighting power.

After all, if the body is full of pieces of sea tower stone, the ability user is equivalent to being useless.

He could only lie limply on the ground, waiting to be arrested, and then sent by Sean to the small black room of Hailou Stone to peel off the devil fruit.

As for the pirates who are within 10 meters of the explosion point, because the distance is too close, they may be shot into the body by several times or even dozens of times of sea floor stone fragments, and they will be directly beaten to death.

sieve.

This one will most likely just hang up.

"The effect is not bad, but it would be even better if we could find a way to improve it to ensure that the target does not die even at a distance of ten meters!"

"Yes, Lieutenant General, we will continue to think of ways in this regard!"

"Well, there's no rush. The existing fragmentation bullets will be produced first, and improved models will be developed while they are being produced. Then let's try another treasure."

"clear!"

He nodded, but soon Leitus showed an embarrassed expression.

"What's wrong?"

"This... the cluster bomb proposed by the Vice Admiral, although we have developed it, we currently lack the tools to deliver it, because this thing requires at least 500 naval guns to meet the conditions for use..."

All right...

It's not that Sean can't understand this. After all, the most powerful naval gun in his hand does not reach 300, and the size of the cluster bomb is destined to be large. Who told him to carry so many things in his stomach?

"You introduce me first!"

Sean nodded and said.

"Yes, Lieutenant General, the cluster bombs we have developed so far also use fragmentation killing methods. Each one carries about 180 high-explosive fragmentation bombs, which can be triggered in the air and allow these 180 high-explosive fragmentation bombs to explode

Fragment bombs covered at least an area of ​​approximately one square kilometer."

"If we talk about the lethality alone, it is definitely much smaller than the 280 fragmentation shells we just tested. It is difficult to cause fatal damage, but it should be able to ensure dense coverage in this area and make all ability users lose their combat effectiveness."

"Although we can make smaller cluster bombs by reducing the number of high-explosive fragmentation bombs and use them on today's 280 naval guns, but in this way, the coverage will not be able to meet the requirements made by you, Lieutenant General, so

..."

After listening to Leitus' explanation, Sean also understood.

Mainly because the requirements I originally raised cannot be realized with existing naval guns.

"It doesn't matter. Let's try the effect first and then talk about it. Where is the thing?"

"This way, Lieutenant General!"

------

A few minutes later.

On the bow deck, all the people in white coats were dumbfounded.

Because Sean directly lifted the huge cluster bomb.

"Lieutenant General?"

"I'll be a human cannon for once!"

Human naval gun...

What the hell?

"By the way, how did this thing explode?"

Suddenly, Sean remembered an important question: How to make this thing detonate over the target?

"Based on calculating the precise time it takes for the artillery shell to arrive at the target location after it is fired, the cluster bomb should be counted down."

"Okay, okay, set it for 3 seconds."

"Lieutenant General, are you trying to..."

"Don't ask, just do it!"

"Yes, Lieutenant General!"

Soon, Leitus set the time.

"How do I start this countdown?"

"There is no need to start it. As long as the cluster bomb moves at high speed, the countdown will start automatically."

"What if I drop this thing from the air? Will the falling speed be enough to activate?"

Sean frowned.

This question needs to be asked clearly. After all, the speed at which the projectile is fired is supersonic.

"That's enough. In fact, it will be activated as long as it reaches a speed of about 30 meters per second!"

"30 meters? That's no problem!"

Sean nodded, and then, under the stunned gaze of all the white coats, Sean carried the huge cluster bomb and walked step by step into the air like walking up stairs.

"Commodore Lucci, is the Lieutenant General using the Navy's Moon Step?"

Leitus looked confused, then looked at Lu Qi beside him.

But Lu Qi shook his head.

How could it be Yuebu...

Speaking of which, I still don't know how my general did this.

Although I have tried several times, I have failed every time.

Even if I asked Sean, he was told that this is his special ability and only he can do it in the whole world.

Over time, I became numb.
To be continued...