(Some of the data in the article is also something that I combined with a variety of information, and there may be deviations, if you have any opinions, you can put them forward, but it's best not to curse!) During this time, I felt very bad about being scolded, and I was so motivated to write it down! Come on! ）

Shuangfeng Village as Zhao Datong's old nest before, the infrastructure is still quite good, there is a stream flowing to the Python River through the village here, the water in the village is quite convenient, and the water quality is just flowing out of the mountain, very clear, according to the locals, the water here is very suitable for iron quenching use, so as Zhao Datong's fortune fundamental, he was in the Shuangfeng Village, originally built a blacksmith shop of a small scale, and the last time Feng Tiancheng washed the Shuangfeng Village, although he burned a lot of houses, he also killed some blacksmiths in the village, But for this blacksmith shop, there was not much damage, after the Xingtianjun took over here, it was simply cleaned up, and the blacksmith shop here was immediately put into use.

And Xiao Tianjian attaches great importance to the matter of ironwork, and there are more craftsmen, and the original blacksmith shop is not enough for the current blacksmiths, so after Zhang Chao took over here, he immediately ordered the craftsmen to build a batch of blacksmith workshops for these blacksmiths to use, and also assigned some blacksmiths to several iron-making furnaces in Dongye Town, which diverted the blacksmiths here.

The remaining more than 100 blacksmiths in the blacksmith workshop are all masters of blacksmiths, and the head of the craftsman is Yang Changshou, the master craftsman who can make bird guns, and Yang Changshou is also grateful for Xiao Tianjian's reuse of him, and he does not hesitate to use his own skills, and passes on the means of making fire guns to a group of more capable and intelligent craftsmen.

As soon as Xiao Tianjian walked to the backhill shed area where the blacksmith shop was located, he immediately heard the tinkling sound of iron, and saw chimneys, towering between the sheds, each chimney represents a blacksmith furnace there, counting more than a dozen, it can be seen that the scale of the blacksmith shed here is indeed not small.

After asking Yang Changshou about the shed, Xiao Tianjian walked directly to the shed, and the craftsmen in the shed all learned the news of Xiao Tianjian's coming, and also learned that they were about to receive the first salary for working in the Xingtianjun, so they all ran out to meet Xiao Tianjian with joy.

Xiao Tianjian had a good greeting with these craftsmen again, and then pulled Yang Changshou into the shed.

As soon as he entered the shed, Xiao Tianjian felt a heat wave rushing to his face, and the cold outside was different from the cold outside, the temperature inside the shed was not low, although it would not make people sweat profusely, at least wearing a cotton body to enter here, and it would not take long to sweat.

Xiao Tianjian walked to a blacksmith's station, reached out and picked up an iron pipe on a shelf, leaned over to his eyes to look at it, and then asked Yang Changshou, "What is the quality of this bird's pipe?" ”

Yang Changshou immediately patted his chest and promised: "General rest assured! This is my personal control to create the pipe, here compared to the original in Shaanxi side of the Tianlong Village, the conditions are really much better, at least the fine iron here can withstand our blacksmiths, and the general has also requested, quality is the first, we craftsmen have enough iron, to build up naturally spare no effort, so all the finished products are usable, can ensure that the brothers in the army when used, will not blow up, if something happens, the general can take me to ask is! ”

Xiao Tianjian nodded, then carefully observed the tube, and saw that there were symbols on the tube, so he asked Yang Changshou, "What do these symbols mean?" ”

Yang Changshou immediately replied: "This is still according to the general's requirements, each pipe is engraved with a symbol, as long as you look at this symbol, you can know who created this pipe, if you use the blast chamber in the future, the first to find me, and then you can find the craftsman who built it, only we ask!" ”

Xiao Tianjian nodded with satisfaction and put down the gun, and then looked down, through the use of the bird guns they captured by the Xingtian Army in the past year, the power of these bird guns they used at the moment is really not satisfactory to him, although he also improved the performance of their existing bird guns by transforming the butt of the gun, with granular gunpowder and fixed gunpowder, but the actual power of the bird guns has not been improved much, but to a certain extent, the accuracy of shooting and the probability of exploding the chamber have been improved. It is not enough to suppress the opponent's strong bow, and at the same time in the face of the enemy's bird, there is no obvious advantage, they used to run around, even if he wanted to solve this matter, he did not have enough time and conditions, and now here, finally laid a small piece of their base, and solving this problem was put on the agenda by him.

Therefore, after he organized Yang Changshou and other craftsmen into a craftsman camp and sent them to Shuangfeng Village, he gave Yang Changshou a task, which was to improve the bird guns they could make now, and the first step to improve was to improve the power of the bird guns, first of all, to start with the guns of the birds, and now the pipes in his hands were in accordance with his requirements, expanding the diameter of the inner chamber, so that the current diameter of the birds was expanded from 9 to 12 and 3 mm in different shapes they used in the past, to about 17 to 18 mm. And the ratio of the length of the barrel was also increased to seventy to one.

In this way, the weight of the projectile can be increased a lot, the charge can also be increased, and the barrel length of 70 to 1 is maintained, so as to ensure that the firing range is not only not reduced, but also increased to a certain extent.

However, the negative effect of the reverse is because it is necessary to ensure that after increasing the gunpowder, the chamber pressure is too high, resulting in an increase in the probability of exploding, so the barrel should also increase the thickness of the chamber wall to a certain extent, so that it can withstand greater chamber pressure and ensure the safety of the user. For a musketeer, this weight is enough to affect their aiming at the gun.

It's just that at present, this kind of bird gun is still in trial production, what is the specific situation, Xiao Tianjian has not seen the effect yet, so another important purpose of his coming here today is to test the power of this new type of firecracker, and through the test gun, put forward the next step of improving this new type of bird gun.

After Xiao Tianjian inspected here, he saw that there are not many finished guns here, and the real finished products are not more than ten, and the craftsmen here are not only building the barrels of the birds, but also creating various accessories, such as the screws that block the tail of the pipes, the faucets and medicine pools that ignite the fire, and the cleaning of the canes of the birds to prepare for assembly.

Xiao Tianjian frowned and said to Yang Changshou: "Are the craftsmen here each responsible for the whole process of building a bird gun?" ”