The designed tools were all manufactured, and carefully polished, after manufacturing these tools, Chen Feng also became familiar with the details of refining technology, and began to make guns behind closed doors.

Chen Feng wants to build a large-caliber manual anti-tank rifle, such a rifle can fire powerful bullets, and its armor-piercing power: with a 90-degree angle of fire and a distance of 300 meters, it can penetrate 4 cm of steel plates, which is enough to penetrate the heads of most beginner-level demon beasts.

The speed of the bullet fired by the rifle is about 850-1000 m/s, at the speed of the beginner demon beast, it can't dodge the bullet, as long as the rifle bullet is out of the chamber, the head of the demon beast and the ruler of the rifle, the pointer is in a state of 3 points and a line, it is the result of a headshot, and it can be killed with one hit.

Chen Feng previously estimated that the small-caliber rifle fired a bullet with little power, and could not guarantee that the bullet would perfectly penetrate the skull of the demon beast, although the large-caliber anti-tank rifle had a large action to operate, and the noise generated when the bullet was excited was also large, which was extremely unfavorable to conceal himself, but it must be indispensable, but fortunately, now Chen Feng's strength is 1400 catties, and it is relatively simple to carry such a big gun, and it will not be too troublesome to carry.

On this day, Chen Feng designed a structural diagram of an anti-tank rifle on the drawings, and drew them in turn: barrel, piston, bolt machine, firing machine, receiver, magazine, front sight, ruler, butt, muzzle brake, as well as tools for making guns, plus a set of accessories for maintaining the guns.

When Chen Feng was in the ordnance warehouse, he had drawn many styles of gun body structure drawings, so it took a day for Chen Feng to draw a complete anti-tank rifle structure diagram on the drawings, and began to draw the corresponding mold drawings of the rifle.

All the preparations are completed, the casting of the rifle begins, first of all, the most important part of the barrel, according to the size model designed on the drawings, use soft iron to create the inner hole mold required for the barrel, use a piece of soft iron to polish into a straight metal circle, use the metal circle to use the fishing method to vertical horizontal line, use a rope as a reference line to measure whether it meets the requirements of the straight line, the iron bar that meets the requirements is the inner chamber mold of the barrel, and then make the outer mold of the barrel according to the design drawings of a soft iron.

After the grinding tool of the barrel is made, the outer mold of the barrel and the inner hole mold strip are combined one after another, and the molten iron essence liquid is poured into the combined barrel mold continuously according to the casting method.

The poured mold cooled down naturally, Chen Feng took out the barrel and wiped it clean, then held the barrel with one hand, and held the mold strip with the inner hole of the barrel with the other, slowly pulled it out, and carefully measured its performance in all aspects.

He said to himself, "This 1400 catties of power is still really easy to use, so smoothly take out the intact mold strip, and make a barrel that meets the requirements at one time, this thickness of the barrel, it should not explode, find a chance to try it first." ”

Next, Chen Feng used the hook knife broaching method to cut out 8 right-handed rifling wires in turn in the chamber, the rifling is the soul of the barrel, and the role of rifling is to give the warhead the ability to rotate, so that the warhead can still maintain the established direction after being discharged, so that the bullet can hit the target more accurately.

Soft iron can be used repeatedly, and Chen Feng continued to use the casting method to make pistons, bolts, firing machines, receivers, magazines, crosshairs, rulers, butts, and muzzle brakes.

Day by day, it took 3 months, all the parts were made according to the design of the drawings, and they were all polished aside, Chen Feng assembled the parts of the gun, and a brand-new rifle appeared in front of him, except for the thickened barrel, it looked no different from the rifle version that Chen Feng had known before, the caliber was 14.5 mm, the ammunition capacity was 5 rounds, the whole gun was 1.76 meters long, and the empty gun weighed 109 pounds, which was the same as the shape in the design.

The barrel is the most important part of the gun, and the barrel is also the most difficult part of the gun body to build, mainly because there is no machine tool for manufacturing tools here, and the method of casting can only be used, and the barrel made by this method is the easiest to blow up, and the material of the barrel should have high strength, toughness and heat resistance, otherwise it is easy to blow up the barrel, but fortunately, the material extracted from the furnace in the backyard can barely be reached, based on the lack of various conditions, when Wu Chengfeng designed the barrel, so he decided to thicken the barrel and thicken it.

In order to facilitate the carrying of the rifle, Chen Feng also tied a strap made of coarse cloth close to the two ends of the rifle. After the gun is made, it is time to start making bullets, smelting black gold into a round strip that can pass through the barrel, and then grinding it at a fixed point, polishing it into a warhead, making a prototype of the bullet a little smaller than the barrel, after plating a layer of tough copper on the outside of the bullet, and then ensuring that it can pass through the inner diameter of the barrel smoothly, Chen Feng polished all the black gold into a bullet, making a total of 128 warheads.

After finishing the work of polishing the warhead, he began to make some simple and durable shells, Chen Feng designed the shells to be thicker, took pig iron and smelted them, made 128 shells by casting method, put the fire crystal powder into the shells, and then combined the bullets and the shells, and bonded the interface with rubber resin, and the bullets were completed.

Both the rifle and the bullet are available, Chen Feng made a set of corresponding accessories with the structure of the gun body, which is used to maintain and maintain the rifle, and the rifle needs to be cleaned at the end of each shot, which will be related to the performance of the rifle, and also determines whether the bullet can pass through the chamber smoothly.

On this day, Chen Feng took out his anti-tank rifle, placed a thick iron plate at the mountain rock in the backyard, adjusted the "baseline" of the rifle, and made 10 test shots in a row, and obtained the test results, the penetration of the bullet was sufficient, the cartridge case was very durable, and the rifle was able to complete 10 normal shots without adverse reactions, and the test shot at a distance of 50 meters was successful.

Chen Feng took out the accessories used to maintain the gun, first wiped the gun body with gun oil, and then cleaned the gun body with clean cloth, the focus is on the barrel, the inside of the gun chamber must be cleaned with a whole strip, especially it cannot be blocked, this will explode, after cleaning the rifle, wrap it with a gray-black cloth to make a camouflage.

To make a rifle is to start training yourself, sniping sometimes needs to stay in a position for a long time, every superfluous action may expose yourself, Chen Feng has to train his gun posture, as well as patience, gun posture is generally divided into 3 types, standing, squatting, lying posture, every simple fixed action, to ensure that within 1 hour to do not move.

Five months have passed, only half of the rations prepared before have been left, and after making the gun and ammunition, Chen Feng took out the mahogany board he bought, and only used a small part to make the butt, and now Chen Feng wants to make it into a weapon box, which can hold all kinds of tools, and it is the kind that can be fixed and will not make noise, not only to hold the rifle and (chopping knife), but also to hide 7 daggers, black gold boning knives, kitchen knives, bone drills, fire knives, copper wires, threading needles, small hemp ropes, rifle accessories, small machetes with long wooden handles, and single-edged axes with long wooden handles.

Make a good weapon wooden box, take the unused bucket of rubber resin, make waterproof paint to smear a few layers of weapon wooden box, the forest is rainy, and the iron is easy to rust when exposed to water, so apply waterproof paint to the weapon wooden box, which can avoid water seepage into the weapon wooden box.

Chen Feng began to make camouflage clothes, while making camouflage clothes with fabric, Chen Feng remembered the scene of being forced to learn needlework by female instructors with a group of comrades in the earth's ordnance warehouse, a group of tall men lowered their heads and held small needlework to make camouflage clothes, don't say it, as long as this person does things seriously, everything can be done well, and the needlework in the hands of these guys is not much worse than that of the little girls.

Chen Feng's camouflage suit is a combination of two clothes: a loose armed suit made in the embroidery workshop and can be freely tightened with a rope, and the other is a robe made of gray, black and green strips of cloth. The armed suit has many pockets that can hold small things, and the gray, black and green robe can be bound to the armed suit to play a camouflage role.

After the weapons and gadgets to be done were done, Chen Feng began to focus on reading and learning "Hundred Herbs and Insects" and "Ten Thousand Demon Diagrams", not requiring himself to be able to memorize meticulously, but at least the knowledge needed to be understood.

Chen Feng marked some poisonous insects that needed special attention on the "Hundred Herbs Insect Record", as well as some valuable herbs to avoid missing out on good things.

On the "Ten Thousand Demon Diagrams", Chen Feng marked the prey that he could provoke, primary demon beasts: wild boar demon, argali, black wolf demon, jade bird, mangniu, ironback bear, golden horned lizard, blood crown beast, blood hyena, fire leopard, blood crocodile, earth brown bear, golden-eyed python, golden-eyed wolf spider, blue-eyed source python......

Chen Feng took out the map around Baiyun City, found the topographic map of the Ten Thousand Beast Forest, marked the most suitable hunting area on the map, marked the dangerous area, and planned a specific route map, especially the hunting route and escape route.

After memorizing the map, Chen Feng made a few lists, walked out of the small courtyard with the weapon box on his back, ended his life of being alone behind closed doors, walked on the street to watch the flow of people coming and going, and felt the liveliness on the street, everything was so beautiful, Chen Feng enjoyed this short beautiful moment, and deliberately ate a big bowl of beef noodles on the side of the street.

First go to the market where livestock are bought and sold to choose a horse, as a foot force, this time out of the place outside the customs will not be short, you need to bring a little more useful things, transport to the stronghold you have selected on the map, after all, there is still a long distance to see the monster beast, close to the border boundary of the monster, how can there be no reason not to be cleared by the "demon hunting team".

When Chen Feng said that he was looking for an experienced horse, the old man's face smiled like a chrysanthemum, and brought a thinner horse to Chen Feng.

After some bargaining, Chen Feng and the old man with a mustache bought it for 8 gold coins at the price of the old horse, and Chen Feng, who had no experience, was trapped, although 8 gold coins was the regular price for buying a horse, but what he bought was a horse that was about to die of old age, the real price of this old horse was to be sold according to the price of the old horse's meat, there would be a few profiteers anywhere, but Chen Feng didn't know that the horse he bought was so old.

Coming to the Baicao Hall again, Chen Feng bought stinky powder, deodorizing cream, antidote, knife wound medicine, bone-setting medicine, qi-preserving pills, and an ice grass.

This time, the shopkeeper Xiao on the counter didn't pay too much attention to Chen Feng, because the business of Baicao Hall was very busy today, and he had no time to take care of anything else, but Xiao Zhan, knowing that Chen Feng had bought the medicine that could only be used outside the border gate, felt curious, and looked at the door blankly for a while, until Chen Feng's back disappeared, he came back to his senses.

Xiao Zhan had a question in his heart! This Chen Feng seems to be an ordinary person, and when he buys those medicines, he must be going out of the Falling Moon Pass to ask for wealth, Xiao Zhan doesn't understand, why do so many ordinary people go out of the Falling Moon Pass to ask for wealth? What is the purpose of fighting so hard?

Dispelling distracting thoughts, Xiao Zhan continued to work his duty, he wanted to become a pharmacist in the Baicao Hall through his own efforts, he felt that this was his road to prosperity.

Baiyun City will always attract such a group of people, go out to the Moon Pass to ask for wealth, in order to find valuable herbs, in exchange for money, often on the verge of life and death, this is the reason why Xiao Zhan classified Chen Feng as that group of people, but he didn't know that Chen Feng wanted to do something more dangerous, that is, to hunt demon beasts, which was tantamount to the rhythm of a child to stroke the tiger's whiskers.

Chen Feng led the horse back to the small courtyard where he lived, and bought a lot of salt, spice powder, and spicy powder by the way, and went to the old forest to survive, as a foodie, Chen Feng had to go crazy if he couldn't eat some taste in his mouth for a long time, and spent all the gold coins, and the remaining few silver coins bought 10 catties of fine beef and a small pot of fine wine, so far! Chen Feng was penniless.

Back in the small courtyard, Chen Feng unloaded the things on the horse's back, put the horse in the yard, and began to organize all the things that he wanted to take to hunt.

Salt, spice powder, spicy powder, jerky, as well as deodorant ointment, antidote, knife wound medicine, bone-setting medicine, qi-preserving pills, an ice grass, camouflage suits, a set of armed suits, a special iron pot, an iron spoon with a long handle, and a hammock made of thick hemp rope, these are all things that should not be wet, and they are packed into a waterproof horseskin bag.

Take out the brewed medicinal wine, fill it with all the nine horseskin wine bags, and mark it, and use the other nine horseskin wine bags to fill the other jar of unopened spirits. Then put all the wine bags together in 1 large sack, and the remaining two small horseskin bags are also filled with water and set aside, which is often used, and it will be good to hang it directly on the horse's back tomorrow.

The amount of foul powder is large and the smell is heavy, so it is packed in a wooden box with waterproof paint and packed into a large sack separately; some hemp rope of different sizes is unified with the remaining large sacks; and then the painted horseskin is rolled up and tied with hemp rope.

Chen Feng used a special dagger to straighten the hair on the top, then boiled the beef, ate a big meal, drank fine wine, and got drunk for 3 minutes.

The weapons have been manufactured, the hunting plan has been worked out, all the preparations have been made, there is no time to wait, rest for the night, and tomorrow morning, open the customs clearance.