Since the upload of this book, the discussion about reloading bullets has never stopped. Now, this chapter is finally uploaded. To be honest, Shi Fifteen is really nervous. Due to the lack of knowledge in this area, if you see any bugs,

Please point it out and we will make corrections as appropriate. Thank you very much.

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Di Lie sat under the shade of a tree with a sniper rifle in his arms, holding a bullet between his thumb and forefinger, squinting at the sunlight leaking through the gaps between the branches and leaves, and looking carefully.

These are not warheads that he removed from the original bullets, nor are they recycled and reused - not to mention that a considerable number of warheads cannot be retrieved at all. Even if some can be retrieved, most of them are severely deformed.

, except for reheating, there is no other use.

This involves a very troublesome problem. When he came to this time and space, he only had a total of fifty-five rounds of ammunition (including standard rounds and incendiary armor-piercing rounds). So far, twelve rounds have been used, and there are still forty-three rounds left.

Fire bullets. When all the bullets are used up, will this sharpest weapon in the world become scrap metal?

of course not!

Di Lie's professionalism reminded him that at least there was a chance to revitalize his sniper rifle, and that was to reload bullets.

In another history of time and space, during the Anti-Japanese War, the Eighth Route Army and the New Fourth Army were extremely short of ammunition, with only a few bullets per person. Therefore, the Logistics and Equipment Department had a strange rule: exchange cartridge cases for bullets. In other words, every bullet fired

, the cartridge casings must be recycled, and then used to exchange for new bullets (sweat! Is this the earliest trade-in for old ones?). The recycled cartridge casings are used by the arsenal to reload bullets and then reused.

In modern times, in some countries where guns are legal, some gun owners often use used cartridge cases to reload bullets themselves in order to save the cost of ammunition. Of course, this is completely different from the helpless behavior during the Anti-Japanese War.

The process of reloading bullets is not complicated and can even be done manually, that is, collecting the fired cartridge cases, reloading the propellant, assembling the primer and adding the warhead is complete.

Di Lie knew this process theoretically, but had never actually operated it. Precisely because he had such an idea in his mind, Di Lie consciously recovered the bullet casings from the moment he came to this time and space and fired the first shot. Currently, he has on hand

There are already about ten standard cartridge cases, which means that ten bullets can be reloaded and used repeatedly until the cartridge cases are completely scrapped or the stored gunpowder is exhausted.

Four things are necessary to reload a bullet: cartridge case, propellant, primer, and warhead.

The cartridge case has been recovered, and the propellant must be smokeless gunpowder. If black powder is used, not to mention the powder residue will greatly damage the service life of the sniper rifle, even the power makes a huge difference - more than ten grams

How much impact can black powder produce? Maybe the bullet fired by a sniper rifle has the same distance as a pistol.

Fortunately, Di Lie had smokeless gunpowder on hand, and there was a lot of it. The culprit that caused him to accidentally fall into the sea were two bags of gunpowder weighing a total of six kilograms. They were all smokeless gunpowder.

Although I don’t know if it is the double-base smokeless gunpowder that is most suitable for military standard bullets for rifles, it is indeed the kind of black and shiny smokeless gunpowder. This is obvious. In modern society, even if the weapons and equipment are extremely

It is impossible for simple pirates to use black powder to make gunpowder bags. Of course, the best gun is TNT or C4, but Somali pirates... I also know that it would be great to be able to get smokeless gunpowder to make homemade gunpowder bags.

Yes, don’t think about higher-end products.

Fortunately, smokeless gunpowder is used. If it were TNT, then this sniper rifle would really only be equipped with black powder to shoot birds.

The standard ammunition of the Barrett m82a1 anti-material sniper rifle has a propellant charge of about 15 grams. Six kilograms of double-based smokeless powder can produce nearly 400 rounds of ammunition.

Four hundred rounds of bullets are enough for a machine gunner to "shoot out" for half a minute at most. But for a sniper, he may not be able to fire that many bullets in actual combat in his entire life.

The next step is the primer. Most U.S. military firearms use boxer primers. There is a hole in the center of the bottom. When reloading, you only need to dig out the old primer and install a new primer (one-piece).

.

Of course, Di Lie had to think a lot about how to perfectly remove the primer from the bottom of the cartridge case in a purely manual manner. The final method he came up with was to heat the tail of the cartridge case until it turns red, and then put it into cold water to quickly cool it.

, using the principle of different expansion coefficients of different materials to easily separate the primer from the casing. After inspection, I was surprised to find that the primer cap was intact. I don’t know whether it is because the material of the military supplies is very good, or because the metal material mutated during the time and space travel, and the result looked like

He has also strengthened himself.

Anyway, this is good news. So Di Lie directly repaired the original primer cap: flipping the used primer cap over, using a suitable tool to flatten the concave surface left when firing, and finally using a small amount of red phosphorus

Mix a small amount of saltpeter and clay to make primer gunpowder. In this way, a new primer cap is ready.

Then put the used cartridge case into a bowl of wheat grains, mix, polish, shrink, and finally use mechanical pressure to reinstall the renovated primer cap back to the tail of the cartridge case. In this way, a new cartridge case that meets the launch requirements will be

finished.

The last step: the warhead.

If Di Lie at this time was still alone as he had just come to this time and space, the warhead problem would be really difficult to solve. But now it is different: he needs skilled workers, and he has a lot of them, and he needs manpower.

, he needs skills and tools... If he doesn't have them, he can make them as required; he needs materials, and what he has on hand are gold, silver, copper, iron, tin, lead... royal supplies, including almost all the known items in the world.

Metal. With manpower, material resources, and technology, as long as it is not too far beyond the productivity of this era, is there anything that cannot be made?

In fact, it is not difficult to make a warhead. Lu Laoer and other craftsmen asked for an original warhead as a mold, and then made a cast iron model. Then they cut the warhead in cross section to understand its inner structure. This elephant was basically understood.

A small cone-shaped object that is as clear as gold. It is a delicate object with a brass cover, a steel sheet as the inner layer, and pure steel as the core. The structure is relatively simple. But even this seemingly simple thing actually comes from the Second World War.

The military-industrial masterpieces of the 11th century were cast by precision machines. How could they be compared to those made by hand?

As a result, the craftsmen tinkered for a long time, but they couldn't come up with a finished product. The key problem was that the steel skin and steel core were difficult to cast. There was no shortage of steel. There was some steel in Di Lie's trophies. According to the craftsmen,

It was identified that it was the high-grade steel material "Bin Iron" that was originally stored in the East-West Workshop in the capital. This kind of fine steel can be used to create a sword that can cut through iron as well as mud. Unfortunately, having the materials does not mean that you can make a real knife.

Guy.

In the end, Di Lie had no choice but to settle for the next best thing and ask the craftsmen to recast solid bullets. That is, heavy bullets with copper armor and a lead mass inside.

This time it was much smoother. The craftsmen spent three days making molds, castings, grinding, and polishing... After dozens of processes and reworking countless times, they finally took shape and made a total of 103 pieces.

Warheads. Forty-six of them failed and were scrapped during casting; another thirty-eight were eliminated because of the wrong center of gravity of the lead mass or uneven armor thickness; and finally twelve more were polished and formed.

, because there are small cracks and the curvature, weight, and shape are different from the original ammunition, they are also scrapped.

In this way, there were only seven truly qualified finished warheads! The scrap rate was as high as over 90%.

What Di Lie is inspecting now is one of these seven warheads. The smooth and perfect lines and arcs represent the superb level of handicrafts of this era. It is a pity that such pure handcrafting is very efficient.

It's too low, not to mention the success rate... However, although mass production is impossible, it is more than enough to provide warheads for his sniper rifle.

After appreciating the top handcrafted products of this era, the last thing Di Lie had to do was to press the warhead into the cartridge case to truly complete the reloading of a bullet.

When Di Lie was on a mission abroad before, he had seen that kind of reloading pressure machine. It was half a person tall and heavy, but the principle was simple. Of course, he couldn't make one like this, and he couldn't make it. He could only do it.

I tried to simplify it as much as possible and asked the craftsmen to build a cartridge case base, which is an iron round tube that can hold the cartridge case. One end is connected to an iron clip that bites the bullet like a wrench. The upper end is an iron handle and several pull-ups.

Reed. Using the lever principle, the warhead can be pressed into the shell without much effort. With a crisp sound, the warhead clamping groove is firmly stuck. Of course, the primer cap can also be pressed into the shell in this way.

This outrageously crude hand press weighs no more than ten kilograms and is no taller than a foot. It is more than enough for one person to operate with both hands.

Di Lie was busy when a voice came from behind him: "Your Highness, what are your instructions for inviting me?"

Di Lie waved back without looking back: "Brother Xiao Yang, do you still remember what I promised?"

"What was promised?" Yang Zhechong was stunned for a while, as if he remembered something, his eyes gradually brightened, "What your Highness said is..."

Di Lie nodded: "Yes, you performed very well in the battle across the river that day. Now is the time for me to fulfill my promise - did you see the target over there? It is five hundred meters away from us... Well, that is

It's about three hundred steps, come and try to shoot."
Chapter completed!