Qin Jun's life has been very regular in recent days. Every day he spends half a day at the lime kiln, and then spends the next half day experimenting with steelmaking at home.
That is, the high-quality molten steel produced each time is very small, only four or five kilograms.
Therefore, the things he made were all small pieces, and many of them were substandard products.
Of course, this is not qualified for him. If it is used by ordinary people, it will definitely be no problem.
For example, the heaviest crowbars and cannon hammers are absolutely resistant to manufacturing.
Qin Jun still has a hard time making the steel softer, but it is very easy to make the steel hard, just add a little carbon powder!
Just a little bit, Qin Jun really made some high-carbon steel.
Not to mention anything else, the hardness is definitely enough, but the toughness is a little bit worse.
Compared with real high carbon steel, it is definitely worse, but it can still be used.
In the process, he also obtained some alloy steel.
After all, the iron ore in his hands must contain some impurities, such as manganese, silicon, and most importantly, sulfur.
Qin Jun can only desulfurize because there are no other raw materials.
All he has now is carbon and lime, and desulfurization requires lime.
The desulfurization of coal also requires lime, but there is more than just lime in the desulfurization agent.
Without enough raw materials, we had to make do with what we had.
The materials finally obtained were considered usable.
Now making some parts of the air gun, Qin Jun successfully cast them.
However, the cast parts are definitely not suitable for use, which requires manual cutting and polishing!
This requires sufficient precision, otherwise it will not be assembled at all.
Fortunately, Qin Jun had enough experience and could roughly estimate the data almost by touching it.
Although it is not precise enough, it can often be assembled with a little trimming.
At this time, the tools he made can work.
For example, chisels and chisels can directly cut various parts.
After four days of work, the production of the air gun has reached the final stage.
However, he really couldn't make many things without machines, such as silencers and springs!
There are differences between the two. The silencer must be made by oneself, but it cannot be done without a machine tool.
Although springs cannot be made, they can be obtained through other channels.
In addition to these two things, the most important thing about a gun is the rifling. He can pull this out manually, but it takes a lot of time.
With these difficulties, if you want to make an airsoft gun, you need to do some research.
In the end, Qin Jun chose a famous gun because this gun was so classic.
This is an open-bore air rifle. What is an open-bore air rifle?
Not to mention anything else, to put it simply, when shooting an open-bore airsoft gun, you have to hold the butt of the gun with one hand and the barrel with the other hand, and break the gun into two pieces at the rear end of the barrel.
The action of breaking the barrel pushes the piston to the rear end of the bolt, and at this time the main spring behind the piston is also compressed.
Of course, there is no spring here, you can use a buckle.
When the piston is pushed to the limit, a small gap in the piston catches on the trigger chuck.
When the trigger clamp catches the compressed piston spring, the entire bolt is in a tense state.
Open-bore airsoft bullets are fed directly from the end of the barrel, or chamber.
After loading the gun, pull the barrel back into place and you are ready to fire.
When shooting, hold the gun securely and apply pressure to the trigger with your finger until the trigger jam releases the piston.
At this moment, the piston is pushed forward quickly by the power of the big spring behind it.
This in turn suddenly pushes the air in the air compression chamber onto the lead located at the breech of the gun, causing it to fly out of the barrel and towards the target.
The barrel of the gun is directly used as a lever to tighten the spring of the spring. This type of piston air gun is called an open-bore type.
Because the Qin army could not make springs, they naturally could not use this ordinary open-bore air gun.
Of course, he also wanted to make a better air rifle, so he chose a .177 starting sniper rifle!
This gun is a sniper rifle among pneumatic firearms and is internationally renowned for its accuracy.
It is a firearm powered by high-pressure gas. Although it cannot be compared with real military firearms in terms of range and power, it is not a toy used for entertainment.
This powerful air rifle can even be used to hunt animals such as wild boar and buffalo.
Therefore, this .177 Black Ops Tactical Sniper Air Rifle can be said to be an excellent one among pneumatic rifles.
Even in the West, where guns are rampant, it still has its place.
The caliber of this air rifle is .177, and the bullet’s muzzle velocity reaches 381 meters/second.
The barrel is 457 mm long and the total length is 1117.6 mm.
The single-shot firing mode uses a rifled barrel, an adjustable stock, and an energy of 22.3 joules.
With such great power, if it were in later generations, it would definitely be very punishing.
But in the 1970s and 1980s, such powerful air guns were just for casual play.
However, making this gun is not easy.
That is to say, the Qin army has rich experience, otherwise it would be impossible to rely on simple tools and just rub it out by hand.
You know, the .177 lead bullet fired by this tactical sniper air rifle can easily penetrate metal cans within 77 meters and shatter empty beer bottles 50 meters away, with an accurate range of 91.44 meters.
This tactical sniper air rifle is powered by a gas piston device.
Rely on the gas strut to obtain enough power to shoot lead bullets.
Air rifles using this design fire more smoothly, have very little recoil, and are even more durable than metal springs.
This kind of gun in later generations is even more handsome than some rifles.
But this kind of handsomeness is actually decorated with some useless decorations.
Although this kind of air rifle has a magazine and a bolt, they are actually purely decorative, they just look cooler.
In fact, this gun is also an open-bore single-shot air rifle, which means that after firing the first round, you must manually reload the projectile to fire the second round.
Although this is a bit more troublesome, it saves you trouble and effort in making it!
For example, rifling, this is definitely useful, and it is of great use.
The original gun of this gun had a rifled steel barrel.
The spiral grooves inside the rifled barrel can improve the accuracy of the bullet after firing and increase the shooting range.
However, Qin Jun did not want to make the first shot at the beginning.
Because he didn't know yet whether the piston device he made was easy to use, he had to sacrifice accuracy from the beginning.
The sacrificed accuracy can actually be corrected by testing the gun.
If the marksmanship is accurate and experienced, the accuracy will be higher.
There is also a muzzle suppressor, which the Qin Army simply omitted. In fact, this thing is a silencer and is useless to the Qin Army.
Of course, this thing can also reduce recoil and increase accuracy when shooting, but this requires special design.
This muzzle suppressor installed on the tip of the barrel can conservatively reduce recoil by at least 50%.
However, this is useless to the Qin army, because it is not used to snipe the enemy. Even if it is to fight Wong Tai Sin, the original performance will not be used at all.
Of course, bipods are still needed, after all, they are easy to make.
If you don't need it at ordinary times, you can also fold the bipod.
The design of the original gun is definitely very handsome, but many things are useless to the Qin army, so they are omitted.
For example, adjustable length, what is the use of it?
Of course, there are also useful ones, such as sights, but unfortunately, Qin Jun really can't do it.
The original gun of this tactical sniper air rifle does not have a fixed mechanical sight.
However, it is also equipped with a 4×32 oscilloscope sight.
32 is the diameter of the front lens, measured in millimeters, and 4 is the magnification.
The image seen through an oscilloscope is about 4 times larger than the image seen with the naked eye.
This can effectively assist the user in accurate shooting.
In addition to the 152 mm long main optical sight rail, the original gun also has two Picatinny auxiliary rails on both sides of the gun.
These can additionally be fitted with lasers and flashes, or other accessories.
Unfortunately, these things are not easy to do, such as lasers or flashes?
None of these can be made by Qin Jun's hands unless he has the appropriate accessories.
If there is a far-infrared transmitter, Qin Jun can even make a far-infrared laser sight. Unfortunately, where can he find these things?
However, things like sights, laser transmitters, and far-infrared transmitters are all available now, right? I just don’t know where to buy it!
