Hearing his words, Xie Huimin said: "Yes, so, we also created a 120 mm tank gun, which is used in the 1224 and 1226 tanks on the side of the first machine factory, although it is similar to the previous 122 tank prototype, but in fact, it is completely different." ”

The previous three-liquid prototype car, which was the 122 tank prototype, was still in the sixties, and a 120 mm tank gun was made, but that was only the technology of the sixties, and its practical use was still the equipment and process used to make a 100 mm rifled gun, so how can the performance be compared with the current 120 mm tank gun?

Now the 1224 and other prototypes are equipped with the newly developed 120 mm tank gun, which is made of electroslag remelted steel, which is the current quality standard, and it is created in this way, and the performance has been reborn!

When he said this, the expression on Xie Huimin's face was quite proud: "We believe that this tank gun can be used as a standard tank gun for future tank troops." ”

The caliber of the 120 mm tank gun is now the caliber of the three generations of main battle tanks in the West, except for the British, who hold on to the technology of rifled guns, other countries use smoothbore guns, Germany first engaged in 120 mm smoothbore guns, France and other countries followed, as for the United States, although the current M1 tank is installed with a 105 mm gun, but it has been negotiating with Rheinmetall to directly purchase their 120 mm tank gun technology.

The domestic caliber is also 120 mm, but this has nothing to do with the West, and it is not for political choices, such as facilitating the supply of artillery shells during the war years, etc.

In fact, it is not the same caliber that can be used for ammunition, in addition to the caliber, there is also a medicine room is a very important indicator, domestic tank guns, all are self-developed, and the medicine room and the medicine room of Western tank guns are not the same at all, so it is impossible to achieve the purpose of generalization.

When we got the 115 mm smoothbore gun of the T-62 tank, we first reduced the caliber and made a 100 mm smoothbore gun for experiments, and then expanded the caliber to 120 mm, which is more ferocious than the 115 mm caliber.

The tank gun that belonged to the three-liquid tank had long been outdated, and now, after the introduction of advanced technology from the West, the recreated 120mm smoothbore gun is a new product, with higher chamber pressure, lighter barrel, and first-class quality!

Xie Huimin is quite satisfied with this tank gun, and the effect of the experiment on the 1224 tank is also quite good.

Although both the 1224 tank and the 1226 tank were mainly for experimenting with the tank chassis, since the artillery had been mounted, of course, many test launches had been carried out.

"Okay, in the afternoon, let's make a report on the specific situation of this tank gun." Zhang Lao said.

Suddenly, Xie Huimin was overjoyed, and Zhang Lao asked him to report, which naturally means that there is hope for this tank gun? There's still a lot of hope?

In his heart, he has been shocked by great joy, Zhang Lao came to their second machine factory, although on the surface he came to observe, in fact, Zhang Lao's real purpose is for their tank gun! In the afternoon, there will be a special report, and then, maybe Zhang Lao will make such a decision, then, their tank gun can officially become the standard tank gun of the third generation of domestic tanks!

Now, of course, he knows that the tank design institute is surveying and mapping the imitation T-72 tank, and at the same time, it is also investigating the 125 mm tank gun.

This is quite important, it is related to the development direction of the tank crew in the next few decades, and it can be said to be of great significance, so several internal meetings were held, but they were not unified, and now, when Zhang Lao comes, it will definitely be unified!

Thinking of this, his heart was even more excited, and then looked at Qin Zhenhua over there, I don't know which plan he will support?

In short, Xie Huimin still has a lot of confidence in his heart.

After the founding of the People's Republic of China, all the equipment in the country was of the Soviet Union, taking artillery as an example, our maximum caliber was 152 mm, and the West's was 155 mm.

But now, the country has been opened, and all kinds of domestic equipment have begun to move closer to the West, taking howitzers as an example, they are already engaged in 155 mm howitzers, and this tank gun, of course, is also moving closer to the West, and the 120 mm caliber is the most suitable.

With such an idea, when he had lunch at noon, he was also in a fluttering mood, and finally, the afternoon meeting was held in the conference room of the Second Machine Factory.

"Our 120 mm tank gun, weighing 2.6 tons, has a barrel length of 6 meters, that is, 50 times the caliber, we know that if we want to make the tank gun's propellant energy fully used, it is necessary to increase the length of the barrel as much as possible, we use this length, although it increases the difficulty of processing, but ensures the power of the shell."

At this time, the benchmark of the West is the 120 mm tank gun of Rheinmetall, which is only 44 times the caliber, and its own has been increased to 50 times the caliber, just to ensure that the tank gun has enough power.

You know, the longer the barrel, the more work the propellant does in it, and when the shell flies out, there will be a big fireball in the muzzle, and those are also energy, but it has been wasted.

"In terms of specific performance, launch our current tail stabilized shelling armor-piercing projectile, the warhead weighs 7.33 kilograms, the length of the bullet is 655 millimeters, the muzzle initial velocity is 1800 m / s, and it can penetrate 500 mm of homogeneous armor at a distance of 1500 meters, and the effective penetration distance of the 150 mm / 68 degree homogeneous deck is more than 3,000 meters, the direct shooting distance is more than 2,500 meters, and the calculation deviation of the target density of kilometers is not more than 0.26 meters X 0.26 meters. Moreover, this is only a shell for the first period, and in the future, as we continue to develop new types of shells, the armor penetration depth of this tank gun should exceed 700 mm, or even deeper. ”

When he talked about these data, many tank experts present let out a soft sigh, and the officers of the tank unit stood up in surprise at this time.

What, five hundred millimeters?

What does this mean?

Now, the introduction of 105 mm tank guns in China, everyone is relieved, the emergence of this tank gun, finally let them in the face of the Soviet tanks, no longer only rely on flesh and blood, rely on sacrifices, go around to the enemy's flank to kill the enemy, from the front of the enemy can penetrate the opponent's main armor!

And that's just a little more than 300 millimeters of penetration.

Now, the power of the 120 mm armor-piercing projectile is, of course, to be improved, because the 1224 and other tanks are mainly for chassis testing, artillery testing, not the most important project, so, the big guy did not pay attention, now, it is the first official report, 500 mm of penetration, it really scared everyone.

The latter statement is even more powerful, that is, they can operate this gun and fire at the enemy's tanks at a distance of two and a half thousand meters!