The "Jiangnan Leather Factory" armor is not ordinary armor. In fact, Malin has also developed a more advanced way of playing - inserting high-manganese steel sheets into the leather bag.

After testing, if the high manganese steel sheet is inserted into the outermost layer of the folding paper, the protective power will be greatly increased and it can withstand the long rifle that is fired by Beihai Kingdom.

Why? After the high-manganese steel sheet was hit by a bullet, it did deformation or even holes. However, because of the buffering of the folding paper, the rifle bullet could not penetrate. Moreover, it would not cause blunt weapon damage or impact damage to the target like the plate armor, even if it could not be penetrated. Because the impact force on the high-manganese steel sheet was absorbed by the folding paper.

Therefore, this kind of bulletproof vest can be regarded as a top-notch bulletproof vest. Even if you get modern, it will be light to prevent pistol damage. As for modern rifles, Marin is not very clear, because he does not have a modern rifle to test. However, it is estimated that a submachine gun using pistol bullets can be blocked.

It can be said that this kind of bulletproof vest is basically based on the modern plug-in bulletproof vest, and then the folding paper is placed on the back, which is definitely more effective than later plug-in vests.

Moreover, not every piece of armor has to be inserted into high-manganese steel sheets in every leather bag. Just insert high-manganese steel sheets into some leather bags on the front and back of the back. This is equivalent to adding a heart protection mirror in the front and back.

The armor made in this way weighs only about twenty pounds, but it reaches an extremely high level of protection.

Then, Marin asked the newly promoted Sir Huang He and a group of craftsmen who made armor to study weaving leather and horse armor for war horses.

Of course, war horses do not need too many high manganese steel sheets. If they are too heavy, war horses will not be able to run. Therefore, the entire horse armor of war horses only has high manganese steel sheets inserted into the leather bag on the face and chest. The rest are the basic leather bags with folding paper.

Moreover, only the horse armor of the big boss’s war horse will be inserted into some high-manganese steel sheets. After all, manganese ore is scarce at present, and the output of high-manganese steel is also very low. It is impossible to insert high-manganese steel sheets into the horse armor of low-level cavalry.

Then, the timid and cautious Marin's chest armor was replaced with the "Jiangnan Leather Factory" armor with high manganese steel sheet inserts. Although the weight is not much lighter than the chest armor, it is much safer because it can withstand musket bullets. You should know that the chest armor can only withstand bows and arrows and swords, and is difficult to withstand muskets.

In particular, with the armor of "Jiangnan Leather Factory", Malin would not have to worry about being assassinated by muskets in the future. After all, assassins would definitely not be able to assassinate with long spears, and would definitely only carry handguns that are easy to hide for assassination. The handguns, even the armor of "Jiangnan Leather Factory" without high manganese steel sheets, cannot be worn.

But Marin was still not very satisfied, and felt that the "Jiangnan Leather Factory" had insufficient protection. After all, what if the assassin used a long rifle? You must know that he could not just stay in the safe city of Orich and never go out.

Although it is safe to insert high manganese steel sheets into all the leather bags, the total weight is more than 30 pounds, which is too heavy.

So, Marin decided to use this as a basis to get more advanced armor...

So, what is tougher than paper? Of course it is silk! Marin had made two layers of cowhide with 10 layers of silk in the middle of the two layers of cowhide. The type that can also withstand the attack of the pistol is similar to this kind of protective power. The problem is that it is also scrapped after being attacked. Another problem is that the number of silk is probably small, which is difficult to resist heavy armor-breaking arrows. Because this kind of cowhide-covered armor-breaking armor-breaking armor-breaking armor-breaking armor-breaking armor-breaking armor-breaking armor-breaking arrows mainly utilizes the toughness of 10 layers of silk to block the breakthrough of spherical lead bullets. However, heavy arrows with armor-breaking cone type can be broken. Because 10 layers of silk have good toughness, but there are many gaps, making it difficult to resist the penetration of cone arrows.

Inspired by the armor of the "Jiangnan Leather Factory", Marin felt that it might be better to fold the silk and stuff it into the leather bag. The 10 layers of silk that originally covered the chest were folded up, and a layer of silk was only folded into a piece and stuffed into a small leather bag. Although the amount of silk increased greatly, the protective power also increased greatly. Then, whether it was the armor-breaking arrow or the lead bullet of the long spear, they were blocked...

However, when faced with a musket, this armor is still vulnerable, that is, the steel nail single-headed bullet created by Marlin himself!

The single-headed bullet is already powerful and has amazing impact. Moreover, the head has the tip of the steel nail and the head acts as an armor-breaking cone. Therefore, if you change the silk leather armor piece, it still cannot block the attack of the steel nail tip.

In fact, the steel nail single-headed bullet invented by Marin himself is too excellent. It has the powerful kinetic energy of the bullet and the super armor-breaking ability of the armor-breaking cone. It is almost a weakened version of the armor-breaking bullet. Generally, armor is really helpless. Even if it is inserted into high-manganese steel sheets, it is impossible to resist the single-headed bullet with steel nails.

Marin was unwilling to give up, and he was also afraid that one day his opponent would get such bullets to shoot him. Therefore, he decided to further improve the armor of the "Jiangnan Leather Factory" so that it could withstand the single-headed bullet of the steel nail.

So, this time, he upgraded the material - sisal fiber!

The toughness and tensile resistance of sisal fibers are much stronger than silk. He took out a batch of sisal fibers soaked in tung oil from the warehouse and handed them to the silk master to weave sisal cloth by hand. Moreover, it is required to be weaved thicker and dense.

The master was a master after all, and with the help of a manual loom, the thick sarca was quickly woven.

Then, Marin used the same trick again and replaced the silk in the leather-wrapped armor sheet with a folded thick sisal cloth.

After testing again, I found that the performance has indeed been greatly improved. This ultimate version of "Jiangnan Leather Factory" armor can not only withstand the spherical lead bullets of ordinary smoothbore guns, but also faces the single-headed bullets, which can also remove most of the power of the bullets, which can prevent bullets from being penetrated into the body, and at most it is difficult to block steel pins. But if the steel pins are penetrated into the body, it can be considered as cold weapon damage such as bow and arrow damage. Moreover, the piercing is not deep, and it can save your life.

And when the folded thick sisal cloth of this ultimate version of "Jiangnan Leather Factory" armor is added with high manganese steel sheets, even if the armor-piercing bullets such as steel nail single-headed bullets are difficult to shoot armor-piercing sheets and damage the target.

"Very good, this kind of bulletproof vest is what I want!"

Then, Marin happily changed into the ultimate version of the "Jiangnan Leather Factory" armor with a folded thick sisal cloth. High manganese steel sheets were still inserted into the key parts of the chest and back. Such armor could withstand ordinary smoothbore guns of this era, even facing AK, and at most it could be damaged. Because sisal fibers are really excellent!

In fact, at the end of the 19th century, a man named Zieglin in the United States invented silk bulletproof vests. He asked someone to weave a very thick silk, which was consistent with Marin's idea. Then, he used four layers of thick silk to make a silk bulletproof vest. Moreover, this guy personally wore a silk bulletproof vest and made someone shoot at him, which alarmed the whole United States at that time.

At that time, Ziegling's silk body armor could withstand the attack of pistols. It is said that McKinley, the stabbed American commander, passed by Ziegling because he was busy with his campaign speech. Otherwise, he would not have died after wearing Ziegling's body armor, and history would have changed as a result.

In addition, it is said that the unlucky Duke Ferdinand, who was assassinated in Sarajevo, wore Ziegrin's silk body armor. But the Serbian young man Princip probably knew this, so he did not shoot in the abdomen, but hit the neck, making the Duke Ferdinand's body armor a decoration. Because of this, Ziegrin's reputation as a bulletproof vest was damaged and he lost the opportunity to rise.

In fact, this matter cannot be blamed on Zieglin's bulletproof vest. It can only be blamed for the Serb guy who is not moral and actually hit the neck...

But this also reminded Marin, so while making the armor on his body, Marin also made a hem of multiple layers of silicon. Like the helmet of the Eight Banners cotton armor, the hem of the silicon can be fastened to protect the neck. In addition, the helmet also retains a pull-down mask on the helmet, becoming a new type of helmet that is connected to the east and west. Even the outside of the helmet is covered with a thick silicon as a protection, similar to the steel helmets in later generations, wrapping Kevra outside, strengthening the protection.

In this way, Marin's safety has been greatly improved. After all, it is the strongest mass-produced fiber that nature can obtain (the golden-eyed spider in the southern part of the United States is really difficult to find, and after finding it, spider silk is also difficult to deal with with the technology of this era). The armor that can be made is also amazing and the protection power is also amazing.
Chapter completed!