On the field of Dachangyuan School, a target was erected on a long stack in the distance.

Zhang Guanqian, one of Zhang Baobai's sons, stood on the left side of the artillery emplacement, with a team of Dingwu army foot soldiers, all of whom were dressed in fine chain mail.

When Gao Yue read, Zhang Guanqian said, Jiexia had previously seized the armor of the Xifan Da Lun Shang Jiezan during the victory of Gou Touyuan, its armor piece is green and clean, shining brightly, and can be identified as having to be issued, and the bow and arrow can not penetrate within 30 steps, and the crossbow arrow can not penetrate within 50 steps, so we imitated it in Yangzhou and Lizhou, and at first did not have its law, and later through the mouth of several Dongshan slaves, I knew that the secret of the inner was repeated cold forging, and when the forged iron piece was forged to two-thirds of the thickness of the original, it was considered a great success.

Hearing this, Gao Yue looked at the armor on the soldiers' bodies, but saw that there was still a piece of unforged on each piece of armor, so the thickness of the other cold-forged pieces was two-thirds, and only this small section of thickness was still the original shape, so it was protruding and shaped like the head of chopsticks.

Gao Yue remembered, isn't this the "Qizi Armor" forged by Qingqiang during the Song Dynasty in later generations? The unforged protrusion is just like the scab that grows on human skin, hence the name.

"The armor has been solidified, but what about the sword of the body?" Gao Yue asked.

At this time, several foot soldiers stood up and took out the Pinglong long knife and horizontal knife, Gao Yue saw it, the blade was sharp, flashing with a cold light, and it was definitely able to blow hair and break hair, which was really more powerful than the original version.

"This is the Iron Knife." Zhang Guanqian said.

Zhang Guanqian further said that this is the group refining method, the so-called "Su", which means the mating of yin and yang, in the furnace of the bear, first bent with wrought iron, and then wound into pig iron, the two are intertwined, and then the pig iron leaks out rice green (Gao Yue's face is slightly red) in the high temperature, injected into the wrought iron, and finally refined into a hard and fine rigid blade, used to make spear blades, swords, invincible on the battlefield.

It turns out that the process of steelmaking is so dirty.

Gao Yue asked, are all sword weapons made of this kind of regimental steel?

Zhang Guanqian faced Jieshuai's question and didn't know how to answer it for a while.

Gao Yue said seriously, saying that the long stab kills people, relying on the tip of the spear, the sword slashing and killing, relying on the blade, the arrow feather hurts people, and the one that relies on the head of the tuft, so just use the group to make steel in these key places, and ordinary steel can be used in other places, otherwise the price of making weapons is too expensive, and our Datang relies on volume to win after all.

"Good steel is used on the blade", Gao Yue contributed a common saying to the Chinese nation.

On the right side of the gun emplacement, there is a team of the Yining Army, and they show Gao Yue the weapon of the bow and crossbow.

In fact, it is a cluster of arrows of two regulations.

One is flat and broad, and the body of the cluster is beaten quite thin, which is called "tuft"; The other kind is thin and sharp, called "needle cluster".

The former is convenient for killing unarmored or lightly armored enemies, while the latter is good for shooting through heavily armored enemies.

Gao Yue nodded, and said that this system of arrow clusters can be extended to the entire territory of Xingyuan and Fengxiang, and generals and archers can use different arrow clusters to strike at different enemies in the future.

Then Gao Yue paced to the middle gun position, which was the new firearm he cared about the most.

Zhang Baobai and several gunners bowed to Gao Yue, and then pointed to the "Tiger Cannon. "Three styles", said to Gao Yue: "Under the I section, this cannon is more dense and convenient to fire than the previous one, and the power is even higher. ”

"Why?"

Zhang Baobai said that now when they cast the cannon, they found that if the cannon body is too short, then it is difficult for the projectile to shoot far, so this tiger cannon is not as effective as a bow and crossbow.

Hearing this, Gao Yue nodded, which shows what kind of short and non-slippery thing like the Three-Eyed Gun can be regarded as a normal firearm? The hairpin can't go far, pick it up and smash it as a mallet? So why not just use a tribulus mace? Whatever you blow and can be used as a close-quarters weapon is often a waste that is unreliable at both ends.

Then Zhang Baobai continued, but if the cannon body is cast long, it is difficult to cast, and it is inconvenient to turn, so the small one is improved, divided into three or five sections with wrought iron, rolled into a cylindrical shape, and the thickness is the same, and then connected with a ladder frame, integrated into one, rotary boring and grinding, plugging one end, pouring with boiling water, if there is a leakage of the place, it means that there is no clearance, if there is no leakage, it is considered to be of good quality.

The fused one is called a mother cannon.

The proportion of the barrel of the mother cannon and the muzzle of the cannon is measured by "how many diameters", and is divided into three parts: long, medium and short, of which the elder can weigh up to one stone, and is placed on the horse wall at the head of the city or on the earth hill of the siege, and the middle one is half a stone heavy, which can be erected on the chariot, and there is a turntable under it for a certain angle of rotation; As for the short one, which is only a quarter of a stone, both cavalry and foot soldiers can be portable.

After the mother cannon is prepared, the sub-cannon is made again, the thickness of the sub-cannon is eight-tenths of the mother cannon, and the cannonballs and thunder medicine are placed inside, in order to fit the dense, and there is a support bolt behind the mother cannon, and the strength generated when the sub-cannon shoots the divine thunder, the support bolt has an eye, and it is plugged with a log when firing.

Each mother cannon is matched with five or six sub-guns, replaced and lifted, so that the projectile fired by the sub-cannon will be far and fierce through the barrel of the mother cannon (basic ballistics, that is, why the projectile shot by the long barrel has a long range and strong power), and it is put into the sub-cannon in turn, and the rate of fire is also fast, and the enemy fails to react to our cannon that will shoot three or four rounds, and the barrel of the mother cannon will not be overheated and deformed.

After speaking, Zhang Baobai, an outstanding and excellent set of hands, demonstrated the cutting-edge tiger cannon to Gao Yue and everyone.

This is a medium-sized tiger gun, and the length of the mother cannon is about ten times the length of the muzzle from the filling door to the muzzle, that is, the "ten diameters".

I saw that the famous gunner suddenly put the sub-cannon barrel with the handle into the mother gun, and then lit the fire twist.

"Bang!" Under the well-balanced shaking of the mother cannon, a cloud of green smoke erupted from the muzzle, and then the three layers of cedar planks on the long stack were quickly pierced and shattered.

Then the fired sub-cannon, emitting hot white smoke, was raised again, thrown to one side, and then lightning-fast was placed into another sub-cannon, followed by a violent cannon fire......

"This one is erected on the chariot, and it shoots in turns, whether it is defending the defense or accompanying the infantry charge, it is too powerful!" Gao Yue was full of praise, and said on the spot that he would reward Zhang Baobai, Zhang Guanqian, and Zhang Guanwan's father and son with 500 yuan, and said that in the future, any innovative ideas in armaments could be submitted to the Kuofang households and military guards, and once this proposal was adopted, they would be rewarded immediately.

The old Tiger Cannon had 20 guns, and the new one had 8 guns, so Gao Yue asked the Azusa craftsmen to build suitable chariots and turntables to carry them, so that they could accompany the army in battle.

After the test was completed, Gao Yue was very satisfied, so he reached a consensus with Tan Zhizhong, the commander of the military of the Metropolitan Commander:

During this time, our army in the Gyeongju area armor, arrow clusters, swords, long handles, and even tiger cannons, divine thunder arrows, these are all manufactured, war horses and grain and grass are also in place, and now there are more Shatuo, Tugu Hun abandoned Xifan to vote, and it is like a tiger with wings - on the west side of Longshan Mountain, Zampu is powerless, we can stab the party and the traitorous party who are trapped in Baiyu Mountain and Tongwancheng!