The history of the development of muskets has gone through several stages, assault guns, door guns, arquebuses, flintlock pistols, and finally breech guns. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

Compared with breech guns, the advantages of breech guns are obvious, breech gun soldiers must be loaded upright, the target is too exposed, and the reloading procedures are very complicated, and it is very easy to make mistakes in a hurry on the battlefield.

For example, in a panic, lead bullets instead of gunpowder are first stuffed into the muzzle of the gun, resulting in no bullets, so you can only withdraw from the ranks and slowly dig out the bullet.

For example, I forgot whether I had fired a gun, reloaded multiple times, and even stuffed dozens of lead bullets into one barrel.

The breech gun can be loaded in almost any position, and the soldier can be reloaded in a lying or kneeling position, hiding behind any cover, and even more so when used on a horse.

Moreover, breech loading is very fast and rarely missed, and it is easy to troubleshoot problems.

Generally speaking, even with the use of cartridge ammunition, if fired at the breech, the rate of fire of a skilled soldier on the battlefield is only three rounds per minute.

The breech can be much faster.

At present, the gun in Zhang Chugong's hand is a "breech gun", of course, strictly speaking, it is only a "half-step breech", after all, it is not a copper-shelled bullet, nor a fire cap, it is still lit with flint or even a fire rope, and it is also worse in terms of breath-holding.

Yang He took the bird gun in Zhang Chugong's hand and looked at it carefully, the three of them were all geniuses, especially Zhang Chuxun, and he was a genius in firearms making, so the bird gun he made for his brother in the early years was designed to be very reasonable and scientific.

The bracket is like a swan's neck, which is conducive to holding and aiming against the cheeks, and there is a yin and yang machine on the fire door, which can prevent the primer from being blown away by the wind in windy weather.

The handguard is inlaid with a sword, which can be used for both shooting and stabbing.

At this time, his bird gun was even more changed, the original arquebus head was replaced by a flint dog's head style, the screw on it was tightened, and a flint was clamped in the mouth.

The Zhang brothers had some sugang, and there would be purchased sugang in the future, so Yang He let them not have to save, and made a spring steel sheet that was enough for flint to ignite.

The back of the gun tube has also become a breech opening style, the mouth is polished very smooth, and the mouth end of the gun tube is also wrapped with thick brass, after all, the breech is fired, and the chamber pressure here is very high, and another layer must be wrapped.

Look at the fire gate, the original hole and the fire door nest are parallel, now it is slightly tilted, and it is also expanded, so that after the fixed medicine in the inside is broken, the primer will flow to the fire gate nest by itself, saving a few steps of opening the nest and pouring the medicine, which is very critical on the battlefield.

Finally, there is the copper bolt, which is just an enlarged version of the straight-walled flanged copper cartridge shell used by the early soldiers.

The down-bent handle of the bolt is like the down-curved bolt handle of the Mauser rifle, which is not only beautiful, comfortable to operate, but also easy to carry and not easy to trip over sundries.

Look at the copper bolt exquisitely, especially the front "cartridge shell" is polished smooth, can be easily stuffed into the barrel, but not too loose, the seam is in place, and it has a good breath-holding effect after launching.

Yang He secretly praised the craftsmanship of these three brothers in his heart, looking at the arc knife at the front end of the copper bolt, stuffing it into a rotation, you can cut and crush the fixed paper tube ammunition inside, and you don't need the soldiers to bite it themselves, just stuff the medicine into it.

The more he looked at it, the more he liked it, and thought to himself that if every bird gun was like this, it would be easier to load.

And Zhang Zhugong and the three of them were still shocked at this time, they were talking excitedly, Zhang Chuxun's delicate face showed contemplation, he looked at the gun in Yang He's hand, and finally said: "Xianggong's design, is it if Zhao Sheren's thunderbolt?" ”

Zhang Chugong and Zhang Chujing also seem to have Zhao Shizhen inspired by the Francophone and invented the thunderbolt, each gamete has five, that is, five bullets, the front end of the gun is like a round mouth, and there are flat square bamboo shoots in the back, and there are eyes in the bamboo shoots, which can be connected with the mother gun with a pin.

When fired, it is no different from a normal bird gun, because the sub-gun is preloaded and reloaded in the breech, so the firing speed is very fast.

But there are also all breech guns in front of the metal bullet problems, the air leakage is extremely serious, the power is small, not to mention the far, and the nature of iron, it is difficult to trap the child and the mother.

The fire would often leak out, injuring the shooters, leaving them covered in faces, and even becoming one-eyed dragons, so although the design was advanced, few soldiers dared to use it.

Yang He said with a smile: "It is indeed inspired by Zhao Shizhen's people, so I named this gun as the new thunder gun." ”

Zhang Chuxun muttered: "New thunderbolt...... The thunderbolt villain has also been used, and it feels like it is ...... with this."

He muttered: "The villain has always wanted to improve the thunderbolt, and he has thought a lot, why didn't he think of using copper?" ”

Yang He smiled, the most difficult thing to solve in the breech gun is the locking mechanism, which requires both smooth opening and closing and effective breath-holding, but except for the very precision steel parts stamped out by later generations, any technique is useless in this era, only brass is used.

Brass has a characteristic, that is, it will expand when heated, if the bolt and the tube are closed, after the gunpowder is fired, the copper bolt can expand and lock the rear of the chamber, solving the problem of air leakage of the breech gun.

Of course, it is impossible to completely hold your breath with only a smooth copper rod like the Yang River, and only the closed convex bamboo shoots like the Mauser rifle can hold your breath more effectively.

And this is not enough, if you want to completely hold your breath, there is only one way in this era, and the only way, is to use brass bullet casings.

When breech guns prevailed in later generations, countless people worked hard to solve the problem of holding the breath of paper shells, but they all failed.

All the wisdom, countless painstaking efforts, any means of holding your breath, what Hall M1819, Dresser M1841 needle pistol, what Sharps drop locking rear loading paper shell shotgun, as long as you use paper shell bullets, can not solve the problem of rear loading gun holding breath.

The only way to solve this problem is to use metal monolithic shells, especially brass shells that have been used for quite a long time.

The brass metal cartridge case will expand when fired, because it is thin and fits with the breech wall, it will expand and lock completely, completely solve the problem of air leakage of the breech gun, and use the brass metal cartridge case, and also solve the problem of moisture resistance of the ammunition.

This was the only way, and even the rough brass shell bullets that were rolled by hand in the early days and often jammed were countless times stronger than the finest paper shell bullets in terms of breath-holding.

Of course, although Yang He knows the ideas and history, and also knows the technology, he can't help it now.

The bolt locking protrusions and brass cartridge casings are too technically demanding, and they require huge manpower and material resources, which he does not have now.

Brass bullets also had to solve another problem, the fire cap.

It's a must.

There is no fire cap, in addition to the bottom of the chamber leakage, the fire door will also leak, and it is also a serious air leakage, but there is no way, to use the fire rope or flint to fire, the fire door is essential, which reduces the power of the bullet.

Let's take it step by step, for now, Yang He is already very satisfied.

And after thinking about it, Zhang Chuxun said solemnly at this time: "The villain thinks that this gun is better than the thunder gun, especially the inside is completely different, why not change the name and call it Xianggong Gong?" ”

Zhang Chujing clapped his hands and said, "Xianggong's name is good." ”

Zhang Chugong is also approving.

Yang He laughed, he didn't care what the name was, he also tried to test it, fired a few live bullets, and finally estimated that during training, this gun could shoot ten to twelve rounds a minute, which was about the same as the evening speed of the bow and arrow.

On the battlefield, even with all kinds of psychological pressure, it is estimated that it is no problem to shoot five to seven rounds a minute, and even excellent shooters can shoot seven to ten rounds a minute.

This speed is very fast, especially in the clear chamber heat dissipation has a unique advantage, at least 20 rounds of fixed cartridge ammunition can be fired in a row, without cleaning the chamber.

Looking at this shooting speed, Yang He was very satisfied, while Zhang Zhugong and the others were shocked, it was too fast, is this still a bird's gun?

However, it is not without regrets, because of the air leakage, Yang He feels that when the breech bird gun is launched, the power and range are a little weaker.

Yang He estimated that the range was five to ten paces weaker than the original.

He sighed in his heart, sure enough, you can't have both fish and bear's paws.

……

Yang He discussed with Zhang Chuxun and others to improve it again, this breech gun is actually still a prototype, and there are still many aspects to be improved.

For example, the problem of the precious copper bolt falling, at the moment, the copper bolt can be pulled out at will and played with in the hand, but when it is placed on the battlefield, the soldiers can't be allowed to pull out the copper bolt and put it on the ground to refill the medicine, right?

And what if it drops?

There has to be something fixed.

In this regard, Yang He borrowed from the fuse of the bolt of the later generations, and set a protrusion on the end of the copper bolt cap, and at the same time set a movable metal plate at the butt.

When the metal piece is pulled to the right, the copper bolt can be twitched to load, but the metal plate prevents the bolt cap from protruding so that it does not fall.

Push the metal sheet to the left, and the copper bolt can be pulled out for maintenance or replacement.

There is also the possibility of air leaks hurting people.

If the copper bolts are made by Zhang Chugong and three people, then of course there is no problem, but there will definitely be more craftsmen in the future, the good and the bad are uneven, the level is different, even if the standard is strict, there will inevitably be some accidents, and it must be solved from the source.

Yang He decided to put a protective silo cover on the outside of the copper bolt, and he drew a pattern on a board with a carbon strip.

The bin cover is attached to the copper cap, and when the copper bolt is pushed and locked, the bin cover will wrap one end of the gun pipe into it, and stop at the fire door, forming a protective bin.

From the side, it looks like a rectangular box, like a coffin.

In fact, three layers of air-tightening, copper bolts, copper caps such as primer flange shells, and finally warehouse covers.

Even if the process is not up to standard, there is a serious problem of air leakage, because there is a gas leak on both sides of the handguard, and it is also after the warehouse cover, go forward and upward.

In this way, the gas leaks out from the front and top of the warehouse cover, not to mention that it will not hurt people, and it must be a warm white mist after heavy filtration, not like the Franc machine or the thunderbolt that burns and hurts people.

Zhang Zhugong and the three of them listened quietly, watched, and listened to Yang He's explanation.

They were all very excited, and after following Yang Xianggong, they learned too much.

And these things turned out to be secrets that were not passed on, but Yang Xianggong generously taught them, and he really followed the right person.

Yang He was drawing on the wooden board, he looked at the pattern in front of him, but sighed in his heart, for now, he could only go this far.

The only way to completely solve the problem of air leakage is to use finer brass metal shells and locking bamboo shoots, which is far away at present.

Take your time, it would be nice if we could popularize this.

And only fight within a hundred steps, it doesn't matter if there is a little leakage.

Just be strong. (To be continued.) )