In the Lou Fu Gun Factory, Li Xuejing installed a freshly forged spiral shaft on the boring machine, loaded a long broache, and slowly pushed it into the barrel fixed on the boring machine until the knife edge extended from the other end of the barrel, and then added a wooden pad to the back of the knife edge and smeared it with butter.

"Pull."

After getting ready, Li Xuejing shouted softly.

At the front of the boring machine, a craftsman pulls the drill shaft, which rotates slowly under the action of the spiral, and the broach also moves backwards while rotating in the barrel, carving a shallow groove.

After the broach left the barrel, Li Xuejing removed the wooden pad on the back of the knife edge, pushed the broach into the barrel again, and installed the wooden pad at the other end, padding the knife edge high, so that the knife edge could scrape the inner wall of the barrel, and then continued to pull.

After pulling this several times, Li Xuejing took out the barrel of the gun and carefully examined the rifling inside against the light.

After a long time, he put down the barrel of the gun and sighed helplessly.

Still failed.

The spiral hinge and broache were the methods that he had discussed with Lord Qin for a long time and had spent several months of exploration.

When the bearing is pulled out along the screw of the boring machine, it drives the broach along a fixed trajectory of rotation and scrapes through the inner wall of the barrel, thus scraping the rifling.

The most difficult part of this method is that the rotation trajectory must be extremely stable.

That is to say, the spiral shaft must be made extremely fine, accurate to a millimeter, and the screw mouth of the boring machine must also fit the shaft perfectly, which is also fine to the millimeter, and there can be no error.

This is the biggest problem Li Xuejing is currently facing.

In the past two months, he has made a total of seven shafts, but none of them are qualified, and the rifling wires drawn out are crooked and twisted, and they cannot be used at all.

In addition, there are also problems with the broache, he cannot grasp the thickness of the broache, and the rifling drawn is of different depths, which is also useless.

Lord Qin said that the firing range and accuracy of this rifled gun are much higher than those of the current self-generated firearms, and if they can be developed as soon as possible, even if they can only be produced in small quantities, they will certainly greatly strengthen the combat strength of the Guan Emperor Army.

So, he had to keep trying.

Li Xuejing put the discarded barrel into the box next to it, which was already full of waste pipes, and then walked back to the front of the boring machine, slowly pulled the hinge, and carefully checked what went wrong.

……

Liaodong, Lushunkou.

After Geng Zhongming found the body of Huang Long, the chief soldier of Dongjiang Town, in the pile of corpses, he couldn't help but look up to the sky and laugh wildly.

Kong Youde, who had already shaved off his hair and left only a small braid, strode over, and after seeing the corpse without a nose and ears, he also laughed wildly.

Huang Long finally died.

After Huang Long took over as the commander-in-chief of Dongjiang Town, he found that Geng Zhongming's subordinate Li Mei had fornicated with Houjin, so he arrested and detained him, and Geng Zhongming and his younger brother Geng Zhongyu held a grudge.

After Mao Wenlong was killed, Liao Yan lost the share of Dongjiang Town, and the Ming army in Dongjiang had been in arrears for several months, Geng Zhongyu used this as an excuse to lead his soldiers to capture Huanglong, and brought him to the martial arts arena to humiliate him in every way, and even cut off his nose and ears, and other generals led troops to come to the rescue, and Huanglong survived.

Not long after, Huanglong captured and killed Geng Zhongyu, Geng Zhongming fled to Dengzhou, after the Wuqiao Incident, Geng Zhongming gathered Liao soldiers to do internal response, opened the gate of Dengzhou City to welcome Kong Youde into the city, and slaughtered all the family members of Huanglong in Dengzhou City.

Kong Geng and the two broke through Dengzhou, and were intercepted and killed by Huanglong on the way to the Houjin, and captured more than ten Dongjiang generals such as Mao Chenglu and Su Yougong, and Kong Geng and the two escaped.

The beam between them and Huanglong is getting deeper and deeper.

Not long ago, Kong Youde and Geng Zhongming sent news in Lushun's Neiying, saying that Huanglong's sailors had gone to sea and Lushun's troops were empty.

Lushun was indeed empty, and Huang Long saw that he couldn't hold it, so he handed over his big seal to his subordinates, and ordered his subordinates to send them back to Dengzhou.

On the day of the breaking of the city, Huanglong drew his sword and killed himself, Shang Keyi, Zhang Dalu and other generals also died on the battlefield, and Shang Kexi's wife and concubine who stayed in Lushun committed suicide by throwing themselves into the sea.

Since then, all the territory recovered by Mao Wenlong in the Liaodong Peninsula has been taken away by the Houjin, and the Ming Dynasty has no military town on the Liaodong Peninsula, and has long been turned into a scattered Dongjiang Town, which can no longer pose a threat to the Houjin.

After the news of the occupation of Lushun reached Shenyang City, Huang Taiji was extremely happy and rewarded the generals who went on this expedition.

Then, Huang Taiji began to prepare for next year's expedition.

The area around Guihua City has fallen into the hands of the Dajin Kingdom, but Lin Dan Khan is still in the area west of the Hetao, and a large number of Ming troops are stationed in Xuanda and Dada, which border the area of Guihua City. Battle

He was thinking about whether to go directly through the Hetao area next year and pursue Lin Dan Khan, or whether to deter the Ming army in Kouluoxuan and Da two places first, and by the way, loot some money and grain to come back to deal with the cold winter.

After pondering for a long time, Huang Taiji suddenly knocked his hand heavily on the Xuanda area on the map.

The Ming court had already noticed that the generals of Xuanda and Dajin had dealings with the Dajin Kingdom, and even the governor of Xuanzhen was arrested and imprisoned, and many generals were also replaced.

If Lin Dan Khan is pursued, it is difficult to guarantee that the Ming army will not attack him from behind.

Therefore, next year, I will enter Kou Xuan University first.

Although the Ming court stationed heavy troops in those two places, many military guards had dealings with the Dajin State, so they could safely enter and plunder.

As long as Xuanda is washed into white ground, the Ming army will have to re-establish supplies, and it will inevitably be impossible to go on an expedition in a short time, so he can rest assured that he will go to clean up Lin Dan Khan.

Moreover, to the south of Datong is the territory of the surname Qin.

Not long ago, the man surnamed Qin released his pigeons in the Qingshui River, and the soldiers and horses that killed him stayed in the Qingshui River for three months, which is really hateful.

This time, Jingle County and Lan County will be bloodied to eliminate the surnamed Qin.

……

North of Hui County, Henan, Daluokou, Bailu Mountain.

Cao Wenzhao led three thousand soldiers and horses in the direction of Huixian, and suddenly a horse galloped in front of him, and Cao Bianjiao and several entourages next to him hurriedly rode forward and stopped in front of Cao Wenzhao.

After seeing that the knight was his own horse, Cao Bianjiao and the others got out of the way.

"General, the thieves in Hui County have retreated." The knight came up to him, gasping for breath as he spoke.

Cao Wenzhao was not surprised at all, and only asked lightly: "Where did you retreat?" ”

"Gao Yingxiang and Li Hongji led 30,000 people and went to Xiuwu, while Zhang Bingzhong and the leaders of several other families also had about 30,000 people, and they were crossing the Taihang Mountain and heading towards Lingchuan, but they were intercepted by the Shanxi guerrilla general Qin Chuan at the pass of Zhuhuo Village."

"Oh? Qin Chuan? ”

Cao Wenzhao raised his eyebrows, and a smile appeared on his face: "How many soldiers and horses did he bring?" ”

"I heard that there were only 1,500 troops, and not long ago, I used these 1,500 troops in the Mianshan area to break 9,000 thieves, beheaded Li Yangchun, and captured Liu Guoneng alive.

"Fifteen hundred?"

Cao Wenzhao's brows furrowed: "Zhang Bingzhong is no better than Liu Guoneng and his ilk, and there are 30,000 troops, how can Qin Chuan's 1,500 men and horses be able to stop it?" ”

"Before he came back to report the news, he had already set up all his troops on the border mountain next to the pass, and built fortifications, looking like he wanted to defend the mountain, with the help of Zhang Bingzhong's way."

"Well, let's go down."

"Thank you, General."

After the horse left, Cao Wenzhao frowned tightly and thought quietly.

After a long time, he suddenly sighed inexplicably.

Cao Bianjiao on the side asked suspiciously: "Uncle, shall we go after Gao Yingxiang, or should we block Zhang Bingzhong?" ”

"Qin Chuan is afraid that he can't stop Zhang Bingzhong with that little force, let's go and help him."

A general next to him said puzzledly: "General, Zhang Quanchang is in the area of Zezhou City, much closer to the pass of Capture Fire Village, won't he go to rescue Qin Chuan?" ”

Cao Wenzhao shook his head: "Zhang Quanchang is the chief soldier of Xuanfu, Qin Chuan has enmity with many generals in Xuanda and Jin, especially offended Xuanfu the most, and offended Zhang Yingchang not long ago, Zhang Quanchang wished he died, and it was impossible to save him." ”

As he spoke, Cao Wenzhao shouted: "Turn around and go west, and you must rush to the pass of the Fire Snatching Village within two days." ”

Cao Bianjiao was eager to try: "Uncle, Zhang Bingzhong's kid is too slippery, we must catch him this time." ”

"Okay, I caught the big guy and rewarded him for his merits, eating meat and drinking wine."