As a 155mm shell flew out rapidly, a dense cloud of smoke with fire was formed at the muzzle, and the slender 52-caliber barrel fixed on the improvised gun carriage also retreated rapidly at this moment, but under the effect of the artillery retreat and re-entry machine, the barrel gradually stopped after retreating a certain distance slightly.

However, the vibration generated by the artillery firing did not end, and a huge explosion sounded in the center of the bull's-eye marked by the huge white circle on the No. 1 target position two kilometers away, and the huge energy of the high explosive charge lifted a large amount of dust on the target position into the air.

The surrounding vegetation was blown away by the powerful shock wave generated by this powerful cannonball, and this was only the first cannonball fired in the endurance test, and before people could recover from the amazing power of this cannonball, the second, third, and fourth shots were fired

"Boom~~~~~Boom~~~~" The 52 times caliber 155mm sample gun kept firing, and the dust raised on the target in the distance from time to time was like a blooming flower, blooming, falling, and blooming again in the white circle

The sound of artillery shells and the explosion of distant targets alternately came and went, and the entire test site was completely shrouded in a deafening roar, but on the small high ground not far behind the artillery launch position, the members of the new artillery development team stood there together, in the face of such a shocking scene, the faces of the people in the development team did not have too many surprised and excited looks, but held the telescope to carefully observe all the actions of the artillery firing and the explosion of ammunition, and occasionally several developers would get together and discuss with each other the performance of the project they were responsible for in the test firing:

"Lao Zhang. The rear seat of the tube is significantly reduced, and the stability is also very good. It shows that our scheme of using a multi-chamber recoil muzzle brake is correct!"

"Well! This is the first time we have applied such a muzzle brake of the same caliber, and judging from the test firing situation at present, the effect is still good!" Lao Zhang listened to the words of his colleague next to him, nodded slightly, and then raised his binoculars to look at the artillery fired again, and then continued:

"Lao Li, your reentry machine is also good, the speed of your tube backseat and reentry is fast and stable, which ensures the continuous and accurate shooting of the artillery!"

"At the moment, it's okay, the hydraulics and spring systems are working fine. I just don't know how reliable it is in the case of such a large charge of continuous shooting?" Although Lao Li said modestly, from his irrepressible smile, he could see that he was still very satisfied with the performance of this artillery retractor system, but Lao Li said that, he turned his head to Lao Wang on the other side, and then pointed to the explosion in the distance to kick up a burst of smoke and dust. Said with a smile:

"Don't just talk about our artillery itself, you see that the ammunition they developed is also very successful, looking at the power of the explosion, it is a lot more than the previous 152mm shell, and the reliability is also very high, it seems that Lao Wang, you have really put a lot of effort into ammunition!"

After listening to Lao Li's words, Lao Wang put down the binoculars in his hand. There was also a look of joy on his face. said to Lao Zhang and Lao Li: "Aren't you the same, look at the posture of this artillery firing steadily." I know that it is a good cannon, and our ammunition can only be played with your good cannon."

On the high ground, the discussion of the specific performance of the artillery in the new artillery development team is endless, and such discussions also make everyone gradually relax from the initial nervousness, especially after seeing the super stability, extremely high rate of fire and strong power displayed by the artillery in continuous shooting, the tone of the new artillery development team members in the discussion is gradually relaxed, and everyone's face is filled with a happy and confident smile.

However, not everyone in the crowd has this smile, for example, Zhu Haifeng, the developer of the new artillery steel standing behind Lu Jiadong's side and the chief craftsman of the Hunan Special Steel Factory, is as expressionless as ever, not smiling, and his tense face makes the already towering cheekbones on his face appear more abrupt.

Although Zhu Haifeng did not speak, nor did he smile happily, but his bright eyes revealed an intriguing gaze, which had both unparalleled self-confidence and arrogance, in short, Zhu Haifeng regarded the sample cannon on the battlefield as a child he had worked so hard to cultivate.

He is full of confidence in the talent that this child wants to show, because this is the result of his careful cultivation after several months, although this child is currently outstanding, but as a strict father, Zhu Haifeng's face still maintains the same expression as always, because in his opinion, it is normal for the child carefully cultivated by him to behave well, and if it becomes bad, it is really hell!

But even so, Zhu Haifeng's arrogance still shows the true portrayal of his heart to everyone: the child I carefully cultivated, such a performance makes him very satisfied, and this arrogance has a deeper meaning in addition to satisfaction, that is, as long as the child he carefully cultivates, there will be such an excellent performance!

Of course, in addition to Zhu Haifeng, there is also an expressionless person among the crowd, and this person is none other than Lu Jiadong, the chief designer of the new artillery standing at the forefront, in his opinion, a few shells do not explain anything, the most important thing is whether the artillery can withstand several key fatigue nodes, and this is the most critical technical indicator in the test of artillery life and reliability, because of this, when the artillery was fired for a period of time, Lu Jiadong picked up the walkie-talkie configured next to him, and shouted into the microphone:

"02!02!I'm 01!, please report the launch!Repeat!02!02!"

As soon as Lu Jiadong's voice fell, Lu Weijun's clearly distinguishable voice came from the earphones of the walkie-talkie, although the sound was not loud, but the people in the new artillery development team were not far away, so they heard it very clearly:

"01!01! I'm 02! 30 rounds have been test-fired! Fatigue of the barrel of the gun is currently being tested."

Hearing Lu Weijun's report, Lu Jiadong picked up the telescope and looked at the artillery position, at which time the sample artillery had stopped firing, and several artillery development team development personnel, with the cooperation of the officers and men of the equipment brigade, used metal flaw detectors to carefully inspect the barrels and bolts of the artillery.

At this time, the people of the new artillery team either raised the binoculars in their hands, or stopped to look at the pergola in their hands, and everyone's hearts were raised to their throats, although the performance of the visual artillery was really good, but that was only a personal estimate, only the real data was the most convincing thing.

It's like taking an exam, after coming out of the examination room, I don't feel how difficult it is to the questions on the exam paper, and I feel that the effect of answering is ideal, but no matter how good I feel, I still have to use the score of the exam to measure the final score, and at this time, everyone in the entire research and development team is like a candidate waiting for the score, nervous and expectant! Even Zhu Haifeng, who was expressionless, clenched his fists tightly at this time, pricked up his ears and tried not to let go of a trace of the sound coming from the headphones:

"01!01!I am 02!No fatigue or damage was found in the barrel and bolt of the gun, and the overall condition was good;

Lu Weijun's voice kept echoing on the small plateau, and when everyone heard this, everyone's faces showed a look of relief, and then filled with a smile of joy, and the entire plateau was instantly immersed in a sea of joy, even Zhu Haifeng, who was not smiling, couldn't help but slam his already clenched fist twice in mid-air to express the irrepressible excitement in his heart!

"It seems that the performance of our artillery can still stand the test!" Wang Chuanchen, who got the result, said to Lu Jiadong with an excited smile, and Lu Jiadong also nodded in agreement, and finally squeezed out a faint smile on his face, and then picked up the microphone and said loudly:

"02!02!I'm 01!Please continue the test!"

Immediately after that, the earth-shattering roar sounded again in the test field, and it didn't take long for the second data results to be reported, and everyone in the new artillery development team was also excited again, but the second time was obviously much weaker than the first time, and soon after, when the third and fourth test data were announced, everyone seemed to have been accustomed to it, anyway, the results had to be reported every 30 rounds, and what results could such data appear in addition to normal?

Under the doubling of confidence, Zhu Haifeng's face finally showed a very unnatural smile, and even the tone of his voice was much higher: "It seems that our artillery has indeed achieved the expected effect, and it has fired 270 fully charged shells, and the performance of the artillery has not weakened in the slightest, which proves that our design and manufacture of various artillery systems are successful!"

At this time, Lu Jiadong's face finally saw a long-lost smile, and he just wanted to answer Zhu Haifeng's words, but before Lu Jiadong could speak, the continuous artillery position suddenly stopped shelling, and Lu Jiadong couldn't help but chuckle in his heart, so he quickly picked up the binoculars and looked at the artillery position.

I saw that several developers were using metal flaw detectors to stop at the barrel of the gun close to the brake, although it was still far away, but Lu Jiadong could still see the frowning brows and unoptimistic faces of the inspectors through the lens of the telescope, and quickly operated the walkie-talkie next to him, but before Lu Jiadong could speak, he heard Lu Weijun's eager and disappointed voice from the earphones:

"01!01!I am 02!When firing to 286 rounds, the temperature of the barrel was abnormal, so I stopped firing for inspection, and found that there were several thin cracks on the barrel of the gun, which was cobweb-shaped."

Lu Weijun hadn't finished saying this, and the small highland, which was full of members of the new artillery development team, instantly fell into silence (to be continued~^~)