Gun-ota ga Mahou Sekai ni Tensei Shitara, Gendai Heiki de Guntai Harem o Tsukucchaimashita!?

Lute, six years old.

The majority of the five-year-olds spent time repeating experiments and verifications from the day the magical liquid metal arrived.

A magical liquid metal is - a liquid-shaped metal obtained from a demon called a metal slime, which circulates as a magical tool.

Magic liquid metal is a special metal, and when you imagine a weapon while touching it and let the magic flow through it, it takes the form of that thing - it has the properties.

The advantage is that a small amount is easy to carry and carry.

That's why the assassins like it and use it well.

The downside is that once the shape is fixed, it will never return to the magical liquid metal.

If you don't paint a clear image, the sword is just a loose end, and the armor can only be an item that is not uniform in thickness and doesn't fit in size.

Limited use and difficult to handle, the price is high due to rare magic tools.

It is also synonymous with unpopular products.

After researching such a magical liquid metal, it turns out that this is really a great material.

First of all, strength becomes stronger just for the amount of magic you pour out.

Even though it was about a sheet of paper thick, it was also possible to make it stronger than an iron plate.

When making springs again, wrap the piano wire around the stick, bake it in - and so on - it doesn't take much effort at all.

Get your hands on magic liquid metal and adjust the size and strength by the amount of magic you pour.

The more you pull it up, the more amazingly high quality spring you can make.

If we could bring the magical liquid metal back to the modern society of previous life, it wouldn't just cover up the fundamentals of material engineering.

This is the level at which a new material revolution is guaranteed.

With some period of time, a poorly done space elevator might be complete.

I couldn't hold back my excitement for so much splendor that I let Dr. Elle, a brilliant magician, speak to me.

"Yes, what is it..."

I get a reply with plenty of nuances about 'even if they talk about it that I'm not interested in'.

How unpopular is magical liquid metal...

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At the age of six, in addition to the morning class assistants I've been doing, my days of doing assignment chores continue in the afternoon.

Incidentally, some sales of reversi and other toys are now transferred to orphanages every three months (90 days).

At first, Dr. Elle insisted that I should receive this money.

But as far as I'm concerned, I'm happy with even getting magical liquid metal for the moment, and the orphanage rules make me money. The good age starts at seven.

As an exception, this time Riversi pushed slightly forcefully to make it an addition to future orphanage management. It's at least a thank you for your help.

It took the form of donations of considerable sums to orphanages, but there were no benefits such as exemptions for assigned work. Maybe you can consider it if you say so, but I'm not willing to skip it, regardless.

I do my job as always to avoid negatively impacting the other kids or exposing them to hind fingers, and handgun making takes care of it in the afternoon after I get the job done properly.

At first, he tried but failed to create the revolver handgun with the magical liquid metal.

The revolver pulled up from the magical liquid metal did not turn the cylinder, the barrel (barrel) was thin, and distorted enough to make me laugh at the rifling etc.

There are too many parts/internal structures to imagine and they fade before instilling magic.

As a result, I was unable to do this.

So give up creating the whole thing at once and change it from a part to a plan to assemble.

In my previous life I was an army otta, especially dumped on modern weapons.

I worked in a metalworking factory, and many times before I was reincarnated, I said, 'Can't you build a firearm with your own hands?' I dreamed.

Revolvers, automatics, assault rifles, etc. - Looking at the drawings, I realized that it was possible to produce them against the machinery and technology of the factory where I was at the time.

Drinking alcohol in a room for one was one of the things I was looking forward to doing.

Now that we have the magic liquid metal, handgun production is never a dream either if we have the knowledge and technical skills of previous life.

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I hold the inner barrel and take it out to the back yard of the orphanage.

Right now, what I'm trying to make is a revolver modeled after 'S&WM10'.

It is a gun that has also been officially hired by the Japanese police in previous life.

Why are you trying to create a revolver that comes out in Western plays and such, instead of automatic (pistols that can be fired continuously and pull triggers to produce empty drug pods)? There's a reason for that.

"Automatic is too difficult to structure internally, not for the first time"

"Revolvers have fewer parts scores and are easier to make than automatic"

"The revolver is sturdy, doesn't have to worry about jamming, and is easy to maintain (so for Japanese police who rarely use guns)"

From the above three points, it is suitable for the first production.

However, no matter how much easier the internal structure is than automatic and how few parts scores you say, it's not something you can make in a day or two.

Explain why - I have to explain it first from gun history.

Because creating guns from 1 means, in a sense, recreating the accumulation of technology acquired by mankind in the pre-reincarnation world with my hands in this world by being ingenious.

First of all, gunpowder - "black gunpowder".

Incidentally, in the historical context, there are theories about when and where 'black gunpowder' was invented, but the current theory is that it was invented in China around the 6th and 9th centuries.

At the time, a Chinese alchemist (also called an alchemist) was conducting a study of immortal drugs, also said to have been produced in the process, and the method of making gunpowder is described in the "True Original Straight Road Main Road", which was written about 850.

Their descendants then developed a weapon around the mid-thirteenth century called 'Fire Spears' (which apparently did not fire bullets, but was like a simple flamethrower/eyeball) called stuffing a short cylinder with gunpowder and mounting it at the tip of a tree or bamboo.

This is the starting point for cylindrical firearms.

Another 'touch hole' gun is made in Europe around the 14th century.

"Touch hole type" is a miniaturized cannon used for applications such as breaking down walls, the most primitive gun in a way that ignites and fires bullets (stones and iron) from holes drilled in the cylinder into gunpowder packed in the back of the cylinder.

It is called a "touch hole type" because the burnt metal rod or the like is pressed from the hole into the powder to explode.

Then not long ago, around 1400, the Arkebus, a personal portable firearm that forms the original form of a gun, was born in Europe as well. The characteristic is that it has evolved into a form that ignites black gunpowder with a fire rope.

Arkebus is composed of hooks, cartridges, etc., and uses the German word "Hakenbuchese", meaning "cartridges with hooks", as its source.

By further improving this "Arkevas" to install parts that act as S-shaped fire rope fasteners and triggers, the oldest type of fire rope gun (Match Lock), S-shaped Serpentine, can be installed.

By sparking the upper right edge of the S-shaped fittings attached to the rear of the barrel (the center point of the S-shaped is the barrel) and holding the lower part of the S-shaped with your hand and pulling it in front of you (the role of the trigger), the spark approaches the barrel and ignites.

At the same time, because of the increased power, the metal armor the knights had wrapped around becomes meaningless, and the tactics and tactics of war change.

When we enter the fifteenth century, we enter the age of authentic firearms.

Prior to that, iron was arranged in a circular fashion, and barrels were built (the same as the barrel method, so barrel-barrel and still called) - but then in the fifteenth century, barrels (barrels) were created with integral castings that were made by pouring 'bronze' into moulds.

Bronze is an alloy of copper, tin (suzu). An advantage over iron is given a low melting point, soft, etc., which is easy to cast even with low technical power (for the same reason as a disadvantage, it is easy to wear and bend).

However, in the sixteenth century steel will be able to be manufactured, and damascus barrels made by heating steel and mild steel with different carbon content to forge ribbon-shaped flat plates (made by applying pressure to metal by tapping, etc.) and then heat-welding it onto core bars are spread (damascus patterns, or unique wood-shaped patterns, are floated by mixing and forging multiple types of steel. Incidentally, the text found in the Japanese sword is also a type of Damascus pattern).

But there were also shortcomings. Because of the wound barrel wrapped in steel in a ribbon shape, the strength is weaker than that of the monobloc molded, and since the invention of smokeless gunpowder, the manufacturing volume will decrease. Because I can't stand the pressure and the barrel is in danger of breaking.

Then in 1856, Henry Bessemer of England will be able to devise a groundbreaking 'rolling furnace' to produce large quantities of molten steel. Henry Bessemer is said to be a steel-making method, and melted iron (Centente) (iron made by reducing iron ore in blast furnaces, etc.). including numerous impurities) to cause oxidative chemical reactions and make steel by excluding (baking and removing) impurities.

A variety of alloys were then made.

Chromium molybdenum steel (alloy with slight chromium and molybdenum added to iron. High strength and resistance to heat. It is also used for bicycle frames and aircraft).

And stainless steel as well (steel with more than 10.5% chromium added to the iron. It is called "stainless steel" and is commonly used because it is machinable and sticky and corrosion resistant).

Steel that can adjust strength, rust resistance and tenacity is now available for production.

I also plan to use something as powerful as smokeless gunpowder, not black gunpowder, if I'm going to make a modern weapon - a handgun.

So just steel is not strong enough at all.

The 21st century barrels are mostly made of chromium molybdenum steel or stainless steel.

To do this, a 'rolling furnace' must be created.

No matter how many memories I have of my previous life, it's almost impossible for me to create them so far.

Hassle, time, funds, people - I don't know what to do when I get it up.

Even when materials are ready, equipment and technology are needed to create the necessary parts.

Even though it is not possible to mould the roughly shaped blocks of the parts you want to manufacture with milling machines, turret lathes, etc., there are ways to forge them one at a time, like a blacksmith.

Even I worked in a metalworking factory, I don't have that kind of technology.

But it was the magic liquid metal that solved that problem.

Imagine it in your head, and if you shed magic, it takes shape just like that.

Besides, it only gets stronger for what you've put into magic.

It will surely also withstand heat and gas pressure when the bullet is fired.

In this other world, no other material is more suitable for making handguns.

I regretted escaping in my previous life, never escaping in this reincarnated world, and I was determined to help anyone in need.

But I don't have the talent to be a magician.

Instead of helping people, I didn't even have the power to protect my loved ones nearby.

So after exploring the power -- knowing the magic liquid metal -- I said, "Can you make a handgun? 'I thought so.

But the purpose is for me. I think that's right and good - but when I see the fact that I can actually 'make a handgun' in front of me, my mind exalts. In my previous life, I got excited about being taken for making handguns that I just dreamed of.

When I was alive over there, I was just envious after work and drinking at home, looking at the specialty book drawings and exploded diagrams and watching videos of making my own model gun from scratch online.

I had to be paranoid about legal, financial and temporal issues.

But in this reincarnated world, there is no law against gunknife laws.

Plenty of the best possible ingredients are also sitting in front of you.

What you dreamed of became a reality. Don't spill a sneer - it's impossible to consult.

There were many problems that had to be crossed, but the joy of being able to work was overwhelmingly greater than the anxiety of worrying about hardship.

I stir my arms in the barrel with a grin that doesn't tighten.

"Do you want to start making handguns now? … I think I'll try to make some cylinders first"

I closed my eyes and took the time to put the cylinder in my brain.

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Six months have passed since I started making revolvers modeled after "S&WM10".

Teacher Elle's assistant in class this morning, and I'll take the lead in finishing chores this afternoon.

I moved to the orphanage backyard with a much reduced medium barrel.

Every day, I make parts during this free time.

The hardest part was carving a rifle in the barrel.

A rifling is a groove carved inside a barrel.

It is needed to give the bullet a rotation, stabilize and fly, and increase the accuracy of the hit.

There are two typical ways to carve this rifling.

A 'button method' that pulls out a drill-like cutting tool called a brooch and engraves a rifle ring.

Cold hammer method of applying force from the outside to a core rod in the shape of a gun cavity space with a rifle ring.

That's two types.

I adopted the latter cold hammer method.

This method is suitable for mass production and is therefore employed by many of the leading firearms manufacturers.

It takes a lot of effort to make a core rod to apply the rifling. However, once made, if it is a magic liquid metal, it can create a large number of barrels (barrels) with rifling.

For this reason, the Coldhammer method was adopted at first, even by labor.

But I had a harder time making core bars than I imagined.

Many adjusted versions were made, and the task of making notes and looking for optimal results was extended and repeated for nearly two months.

However, you succeed in creating a rifling barrel (barrel) that you are comfortable with.

Now the core rod can be immersed in a magical liquid metal and stably created with a barrel (barrel) stably engraved with a high quality rifling if imagined to be covered and magically applied.

There were many other struggles...... The revolver finally reproduces the structure where the internal structure turns simpler (laughs) and higher than the automatic, but then realizes the difficulty of adjusting and repeats the trial and error, then rotates the cylinder without madness and stops it in the constant position.

Then make a needle and shea on the iron shooting (hammer). The trigger meshed properly with the cylinder stop, Shea, and the hammer block, rebound slide, and main spring were also created and incorporated.

And it was this prototype number one!

Black monochromatic 'S&WM10' revolver.

It also makes a shooting star (front sight) and a shooting gate (rear sight). The grip did not use wood and made a metal anti-slip with braids in it. Careful gold (trigger guard), ejector rod shroud, ejector rod, and recoil shield were also made properly.

Furthermore, it was not necessary on the cylinder side, but also digs the flute (grooves shredded for weight reduction) as a visual.

It looks as heavy as metal, but it's pretty much the same as the model gun "S&WM10" or lighter thanks to the magical liquid metal feature, "only stronger for the amount of magic poured into it".

Every time I shoot in the sky, I feel comfortable with the twitching of the cylinder that goes around with the rattling iron (hammer).

If we stay like this, we're going to shoot in the air until free time is up.

Change your mind and take up the challenge.

I'm finally going to try it today.

Bullets are the problem here.

There are no black gunpowders or smokeless gunpowders in the reincarnated world.

"Sure how to make smokeless gunpowder... did you mix nitrogen and dip it in cotton? Yeah, the hurdles are too high......"

Even if you can create smokeless gunpowder again, if you pack it in a bullet and shoot it - it's not like that.

Handguns and rifles have different burning speeds.

In the case of a handgun, because the barrel (barrel) is short, a "fast combustible firing drug" is required to finish combustion before the bullet leaves the gun mouth. So modern handgun launchers (powders) are small granular rather than black gunpowder.

Which burns faster if you light a large amount of chopsticks of the same mass as Marutai at the same time?

The answer is obvious, but chopsticks.

Because chopsticks have more surface area.

The same is true for firing pills (powder), which burn faster in granular form.

It doesn't just mean we have to explode.

Problems that come up one after another when you come up with them - but it's magic that solves such problems all at once.

Mages turn magic directly, into fire, water, wind, thunder, earth, etc.

Especially water, soil, etc., come from a space where there is nothing. Fire and thunder do not use the energy stored by the magician himself. It also seems like a phenomenon that disregards the law of mass preservation, but I don't know how it works, but I'm certain that matter and energy are actually being produced (I can make some reasoning about energy coming from a space with nothing, but I don't know which is right). But either way, the fact that magicians have 'good pedigrees' is probably important for the creation of matter and energy.

If I am weak, but can handle the four-element magic of "fire," "water," "wind," and "earth," and if I actually know gunpowder, is it possible to create a smokeless gunpowder replacement with magic? That's what I thought, and I've been trying and making mistakes with the magic control techniques I've learned.

I can get to the basics. After that, you just have to control the burning speed, with image power.

Ammunition (cartridges) that were not packed with powder had been prototyped in time at the end of cylinder adjustment.

At first the size was too large to go into the cylinder or vice versa it fell uncatched.

Now that I have finished taking detailed adjustment records, the finish is almost fine except for the firing pills (powder).

Check the notes on the adjustment record and put only your right hand inside the magic liquid metal.

Components that make up the ammunition (cartridge) - size 38 special (9 mm). Magic can be applied inside the pod (case).

The magic power of the powder emits, further compresses, and stationarily rests the powder in the image of an explosion, combustion, bursting, or smokeless powder.

We need meticulous magic control, but that training is building up. The immobilization work is successfully completed and the breath that had been inadvertently stopped is breathed out vigorously.

Lid further with a bullet core (Bretcore) from the top.

The material imagines lead.

Wear a thin coat of armor (jacket) over pseudo lead.

The thunder tube (primer) in the buttocks also has the magic to cause a small explosion, and at the end of the day you cover it all with a bullet (bret) and it's done.

Remove the right hand from the magical liquid metal.

There was only one piece of ammunition (cartridge) in the palm of the hand that was familiar in previous life.

It doesn't look any different than the real thing.

"The question is if you're gonna get the bullets right."

I can just put ammunition (cartridges) in the revolver.

I also got into the cylinder fine.

Pick up the bricks that were discarded and stand on the appropriate crate. Improvised.

About nine meters away, set up.

Grip with your right hand and stick your eyes in place.

The left hand accompanies the revolver and the right hand to support it from the bottom.

Shoot the basic handgun.

The mental age is over thirty, but the flesh is only six.

Keep your whole body fortified with physical fortification in case of impact.

Hammer iron and hold your breath.

The tractor (trigger) was quietly squeezed with his index finger.

Bagan!

"Gu Ga...... Huh!?

It's not a shooting sound.

An outburst!

The revolver blows from the inside.

My right hand, which was close to the explosion, was either due to physical strengthening or my fingers didn't blow up.

The thumb and index finger are tightly connected.

"It hurts so much that it makes me nauseous - ugh"

"Hey, what's the big noise now! Hino...... ugh!?

Dr. El notices the outburst and rushes to the backyard in a hurry.

My teacher screamed small when he saw my serious injuries.

Your complexion turns bright blue like you've lost your mind.

Running over with a face that is about to cry out now, he immediately confirms the wound.

Serious injury is to the right hand, I made sure there were no other scratches.

You decided it wasn't life-threatening or slightly reddened your teacher's complexion.

The children also noticed the sound and appeared, but the teacher stopped pushing with a sharp voice.

"All of you, don't come! Older children, take the younger ones right inside!

With a crane voice, the children turn back to the orphanage.

"Lute! What the hell are you doing to make this happen!

Teacher scolds me for holding my right hand down and squeezing my hand.

"Light on your hands, healing light (heel)"

"... ooh"

That's mage b-plus under the sky.

When the warm light comes from the palm of your hand, the fingers that were blowing away connect to each other with magnets.

There were no scars at all, and they healed beautifully.

"Thank you, Doctor"

"It's not 'thank you'! What the hell would I do to get hurt like that!

"No, there's too much magic to get in a little while developing that new magic tool..."

It's a long time to explain the handgun from scratch, and it takes time to make it understand.

I misled it appropriately by omitting explanations.

Dr. Elle glances at the magical liquid metal in the barrel.

"... Lute, I don't know what you're making, but I'll make a noise and give you a worried sermon, so come to the reception room for a moment"

"Wow, I get it! Don't pull your ears because I'll walk myself!

Teacher El returns to the orphanage as if she were the mother of Showa, and when she grabs my ear, she drifts.

He was brought to the reception room and seated on the floor.

They hear long, long sermons.

Of course, no dinner.

After being squeezed tightly, he was ordered to ban experiments and penal labor for thirty days as a torment that caused the noise.

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Thirty days after the outbreak, the experimental ban was lifted!

The last reflection completes the washout during the period of punitive labour.

The revolver erupted, but the bullet core (Bretcore) that landed on the ground was firmly engraved with a rifling.

This indicates that the bullet fired properly through the barrel (barrel).

Problem is probably due to too much magic instead of firing pills (powder) & too strong an image of the explosion.

During the Black Gunpowder Era, the inside of the pod (case) was filled with gunpowder.

However, after the invention of smokeless gunpowder, the amount required for ammunition (cartridges) will be half that of black gunpowder.

This empty space is called 'Air Space'.

Generally, when a firing agent (powder) fires, the air layer between the firing agent (powder) and the warhead absorbs and buffers (buffers) the shock waves emitted from the firing agent (powder) (gunpowder does not burn uniformly, so it generates discontinuous pressure, that is, fine shock waves), and thus has the advantage of stabilizing the velocity of the bullet in order to prevent the pressure from biasing or rapidly changing.

The original casing (case) is only "the right amount of the right type of powder" by experts.

What happens if an amateur decides to reload ammunition (cartridge) (reuse of a cartridge) and chooses the type and amount of powder to fire without even thinking about air space?

Worst case scenario - an outburst.

I've been polishing my imagination to make revolvers for over six months.

Because of that, there was too much imagination and magic.

Rebuild a new revolver to adjust your magic and image power while finding the right amount of powder.

Time for trial and error and note-taking begins again.