The southeast corner of Twilight City was surrounded by a stone wall four or five meters high, forming a closed place, leaving only one exit, at this time two iron doors were open, and Alan walked in with Budbatons.

This is the location of the Logistics Bureau, which, in addition to the task of mobilizing grain and grass, also undertakes the responsibility of researching and manufacturing weapons of war.

Allen came to the Logistics Bureau this time because the latest war killing weapon developed by the Logistics Bureau has been successful.

Ballista!

The structure of the ballista is complex, and if it is directly studied by the Logistics Bureau, it is estimated that it will not be able to get a finished product in a few years, so Alan inquired about a crossbow ** paper from the origin bead.

After getting the drawings, the logistics bureau began to research, experiment and improve, and finally produced a ballista that fit the real environment.

It is called a ballista because, although it is a crossbow, it is as powerful as an artillery, and it can fire not only iron bullets, but also giant ballista arrows or spears.

Once the ballista is powerful, within its range, the giant arrows fired can be seven or eight soldiers lined up in a dense formation, like a gourd, one by one, if it is an iron bullet, it can directly smash the bodies of several fighters.

In particular, the iron bullet can also cause secondary damage, and after completing the first attack, the power of the iron bullet to fly out can still knock people into internal injuries or cut off limbs.

Ballistas need to increase the pressure through a specific spring group, the logistics bureau in order to make the springs, but it takes a lot of effort, which is also a difficult point in the process of making ballistas, each spring, must be carefully formed by the blacksmith, an experienced blacksmith can only knock out two or three finished springs a day.

"Lord Earl!"

Knowing that the Earl had arrived, Newman, who was in charge of making the ballista, immediately rushed to meet him with a group of his men.

"Newman, I heard the ballista has been made?" Alan said with a smile.

"Yes, sir, quick, push the ballista out to the Earl!" Newman shouted to the crowd around him.

Crunch!

Then, the sound of the wooden wheel crushing the ground was heard, and several young and strong men came to Allen with ballistas.

Looking at the black-colored, strangely structured and large ballistae in front of him, Alan nodded, the materials needed to make the ballista were extremely complex, and most of them were relatively rare and precious.

The upper body of this ballista is basically made of fine iron, which is not a mortal thing, but a special fine iron produced by the Golden Snake, even the spring, and although the lower part is wooden, it is also made of special hardwood.

In order to be tough enough, the crossbow string is made of a mixture of fine iron wire, fire cow tendons, flame rat hair and other materials to ensure that it can fire ten kilograms of iron bullets and special iron guns.

"How powerful is it?" said Allen, looking at Newman.

"My lord, if you load ten kilograms of iron bullets, the effective attack range can reach 500 meters! If you hit the iron gun, the attack range can reach more than 700 meters!" Newman said excitedly, in order to make this ballista, their logistics bureau spent a lot of energy during this time.

After Allen heard this, his pupils shrank, although he knew in advance that the range of this thing was very long, and the drawings said that the longest distance could reach four hundred meters, but now the actual range of this ballista made by the Logistics Bureau is much more than that.

He was already a little eager to see the power of the ballista, and quickly ordered Newman to use the ballista to attack again, so that it could show its destructive power.

"My lord, please set the distance?" Newman's voice came into Alan's ears.

"Five hundred meters!" Allen suppressed the excitement in his heart, and said calmly, five hundred meters is just the limit distance of the iron bullet.

Since it is to fire iron bullets and iron guns, it is natural that there can be no attack target, and on the battlefield, the target of the ballista is the enemy, and now the attack target has been changed from people to cattle.

The logistics bureau lined up five fully grown cattle wearing iron armor side by side and fixed them at a distance of 500 meters from the ballista, fortunately, the logistics bureau was not small and there was enough open space for test firing.

Squeak!

Then the personnel of the Logistics Bureau on the side put a solid iron ball of nearly ten centimeters into the ballista, and the two of them operated at the same time, struggling to pull the ballista apart.

The next step was to adjust the angle, and according to some special markings on the ballista, it took the two of them about a minute or so to adjust the angle.

"Your Excellency, you're ready!" Newman said softly, standing next to Allen.

Alan nodded, signaling that it was okay to start, and Newman understood, using a gesture to make everyone on the side step back, and then let the two people next to the ballista fire.

Rumble!

Hearing only a burst of air, there was a roar in everyone's ears, and the iron bullet turned into a black shadow and flew away.

Boom!

"Howl!" followed by a muffled sound, followed by the terrible screams of the ox.

The original headless ox directly in front of him, now only the last one is still standing as usual, the two in front of him instantly turned into a broken corpse, making the place full of blood mist, and the third cow did not become a broken corpse, but the abdomen disappeared directly, and the fourth one was the one that was screaming, although the iron armor on the body had obvious depressions, but it was not broken.

In other words, the iron bullet was already insufficient in its own power after killing the third ox, and could not break through the iron armor on the fourth cow, but even then it caused serious internal injuries to the cow, which can be seen from the blood leaking from its mouth and falling to the ground.

At a distance of 500 meters, directly kill three oxen wearing iron armor, Allen is sure that such an iron bullet smashing into the enemy army will definitely cause a large number of casualties, especially in this era of cold weapons, the main combat method is group charge, and once the crowd is too dense, the greater the damage caused by the iron bullet.

"Change the spear!"

"Yes, sir!" Newman said respectfully when he heard Allen's words.

As soon as Newman finished speaking, a long spear with a black body, about two meters long, and as thick as a copper fish, was put into the ballista.

The position that originally prevented scalpers was now neatly lined up with ten scalpers.

Sou!

The spear broke through the air, and with a roar, the air exploded, and the air surged, and the spear turned into a black shadow like a black snake that preyed on its prey.

Poof!

Hearing only a shrill sound, the spear quickly passed through the first ox, pierced the iron armor on the second ox, and pierced into it, and then the third, the fourth, and the fifth...... It wasn't until the seventh, as it passed through its body, that the spear got stuck in the iron armor and stopped.

"Howl!

Suddenly, a terrible wail came from the cow's mouth, and all but the first six were not immediately dead, although their bodies had been pierced by the spear, and a thicker hole had been blown open.

But as time went on, the cow howls became quieter and quieter, until they were no longer audible.