Li also knows that it is not that bows and arrows are more powerful than bullets, but the penetration of bows and arrows. Especially for targets such as sand, the resistance of arrow feathers is far less than bullets.

But in the face of hard targets, the penetration of bows and arrows is far inferior to that of bullets.

At least in the face of targets such as wall tiles, bullets can easily penetrate, and bows and arrows can penetrate, which is very powerful.

As for the steel plate, if it is thick enough, there is no possibility for the bow and arrow to shoot through.

However, due to the limitation of human weight-bearing ability, armor can only be made as light and thin as possible. Otherwise, if you really want to make a set of armor weighing one or two hundred kilograms, bows and arrows can defend, but no one has the ability to fight with such heavy armor.

Li forgets worry. Now he just hopes that the armor made of 100 steel is tough enough. After all, compared with ordinary steel, the strength of hundred steel-making made by repeated forging has far exceeded that of ordinary steel.

As for the specific effect, only after trying can we know. But Li forgets worry at least to be sure that the iron armor with lines in front of him is definitely not as easy to be penetrated by arrow feathers as the standard armor in the Tang army.

For Niu Wu's words, Li forget worry just smiled and said, "Niu Wu, this is an iron armor made of 100 steel. Whether the bow and arrow in your hand can be shot through is not sure."

Niu Wu didn't believe it. He took down the strong bow on his back, pulled the bow string in the air, and made a sound of Weng Ming tearing the air.

"Lang Jun, I didn't know how many Turkic iron cavalry's armor was pierced by the arrow in my hand at Yanmen pass. I didn't brag. The two stone bows in my hand must be worn within a hundred steps."

Yan Liben nodded and echoed, "Sir, Niu Wu is right. Two stone strong bow, coupled with armor breaking arrow, the disciple estimates the distance of 100 steps, and the iron armor can't stop it at all."

"Then try it." Li forgot to worry, shrugged his shoulders and didn't bother to say more.

After the armor was fixed on the target, the crowd retreated.

At a distance of 150 meters, Li forgets to worry about his sight. Fixed on the target, the iron armor looks only the size of the nail cap.

Without saying a word, Niu Wu directly stretched his bow and took the arrow. With a whoosh, the arrow feather galloped towards the target.

Because he wanted to test the defense of iron armor, Yan Liben asked someone to send Niu Wu a special armor breaking arrow in the army.

This kind of arrow is specially made to break the enemy's armor. It has strong penetration. The arrow of armor breaking arrow is more slender than ordinary conical arrow and has a cross blade shape. Therefore, it has little resistance when penetrating armor. It can easily break armor with a powerful bow and crossbow.

In the battle array, if you deal with infantry without thick armor, you can even penetrate three people with one arrow, which shows its great power.

The next moment, when a crisp sound came, it was the sound of the armor breaking arrow hitting the iron armor.

In Niu Wu's imagination, his arrow feather should directly penetrate the iron armor and even shoot through the subsequent arrow targets together.

But something surprised him happened. After hitting the armor accurately, the armor breaking arrow not only failed to penetrate, but was directly bounced out after a crisp sound.

Yan Liben was also stunned. He couldn't believe it and asked, "did you bounce off? Didn't you shoot through? How could this be possible? Niu Wu uses a strong bow of two stones!"

Niu Wu's old face was also red: "Xu has just shot an arrow. Wait for me to shoot another arrow."

Before Li forget you spoke, Niu Wu drew his bow and arrow again. This time, the whole bow was pulled into a full moon by him. The armor breaking arrow left the string faster. Li forget you seemed to hear the sound of the arrow feather breaking through the air.

The incredible thing happened again. With the sound of armor breaking arrow, he was shot out by armor again

Niu Wu's eyes were a little dull. He put down his bow and arrow and turned around to see Yan Liben, who was also stupid, and his husband. He didn't understand what had happened.

Niu Wu knows the power of the armor breaking arrow and the strong bow in his hand. He was outside Yanmen pass, but he shot and killed several Turkic Armored Cavalry at a distance of 150 steps.

You know, the defensive power of the circled armor equipped by the Turkic iron cavalry is no less than that of the standard armor of the Tang army.

But even so, the most elite Armored Cavalry of the Turks still couldn't resist the two stone strong bow and armor breaking arrow in Niu Wu's hand at a distance of 150 steps.

But I really saw a ghost today. I was only a hundred steps away. I couldn't shoot through the iron armor with two arrows in a row.

Seeing that he couldn't shoot through the armor at a distance of 100 steps, Niu Wu took a few steps towards the target and drew the bow and arrow again... With a sound, the armor breaking arrow was bounced off again.

Niu Wu kept shortening the distance between Niu Wu and the armor, 90 steps, 80 steps, 70 steps... Until the distance was 50 steps, the armor breaking arrow was finally not bounced off by the armor, pierced on the armor, and the arrow feathers kept shaking.

Niu Wu put down his bow and arrow and wiped the sweat on his forehead.

Er Shi's strong bow, even if it was as strong as him and opened it seven or eight times in a row, was so tired that his arm began to swell.

Li Qieyou didn't expect that the armor forged with 100 steelmaking had such good defense. It was only at a distance of 50 steps and more than 70 meters that the armor breaking arrow plunged into the armor.

Yan Liben was even more stunned. The defensive power of this iron armor completely exceeded his imagination.

When they hurried to the target, they saw that there were only seven or eight pits on the iron armor, which was obviously the trace left after the impact with the armor breaking arrow.

The feather arrow hanging on the iron armor fell down with a slight touch of Li forgetful worry. Then look carefully. The arrow of the armor breaking arrow only pierced a small hole in the iron armor and did not penetrate at all.

Niu Wu is speechless now. At a distance of 50 steps, two stone strong bows and armor breaking arrows can't shoot through this iron armor. If such steel is made into armor, isn't it equivalent to being invulnerable?

"Lang Jun, this iron armor is so hard! I'm afraid I can only shoot through it within 20 or 30 steps. Tut Tut, if I had such armor when I went to fight with my brother, he wouldn't have lost an arm."

Li forgot to worry and nodded. In the age of cold weapons, if there was a set of armor, it could effectively reduce the chance of injury.

He thought about it and said to Yan Liben, "Liben, let the craftsman line the back of the armor with several layers of silk, and then line it with salted cowhide. In this way, I guess that even at a distance of 20 or 30 steps, I'm afraid Niu Wu can't shoot through the armor."

The method Li forgets to worry about is naturally the compound protection idea of future bulletproof clothing.

The iron armor absorbs the kinetic energy of the arrow, while the silk is made of raw silk, which has good elasticity and tension, and can reduce the kinetic energy of the bow and arrow again. The innermost cowhide has strong toughness and can defend against arrows.

With three-tier composite defense, Li forgets worry. He doesn't believe that bows and arrows can penetrate such armor.

However, Niu Wu didn't believe his words again.

The iron armor made of 100 steel was really strong. It took him 50 steps to shoot it out of a small hole. However, if the iron armor is pasted with several layers of extremely thin silk and lined with a layer of cowhide, it will not be able to shoot through. It sounds like a arabian night.

"I don't believe that, Mr. Lang!" Niu Wu said in a deep voice.

Yan Liben also shook his head. Naturally, he didn't believe what Li forgot to worry about.

Seeing that neither of them believed his words, Li forgot his worries and was happy.

"Liben, if you don't make a bet with me? If Niu Wu's arrows can't shoot through this armor as the teacher said, how about all the 13 sets of armor? If you shoot through, you can use any pig iron to make armor for the teacher. How can you bet?"