"Knock knock!"

The dull sound of shooting, unlike any weapon that had come before. Pen "Fun" Pavilion www.biquge.info

In the smoke of gunpowder, a dense rain of bullets pounced on an FT17 tank in the distance, instantly smashing it into a thousand holes.

The tank was shaking, as if a sad person was shaking his head. Holes, large and small, are like cracked mouths, complaining about the injustices suffered.

"Knock knock!"

The shooting continued.

However, there was no shooter lying on his stomach behind the machine gun. Only one person sat in a chair and pressed the red button in his hand.

"The bullet specification is 12.7X108, the rate of fire is 800, and the muzzle velocity is 740 per second, which basically meets the design requirements."

"Knock knock!"

The golden flames flickered at the muzzle of the guns, because the speed of the shots was too fast to feel them briefly flickering and extinguishing. If you look at it for a longer time, your eyes will become temporarily blind.

"Ding-dong-ding-dong!"

The machine gun's shell is under the barrel, but the pre-dug pit has been filled with rapidly falling shells, and the excess can only roll aside.

"The muzzle of the gun is overheated, stop shooting!"

In an instant, the dull sound of shooting stopped. Everyone only felt that there was a "rumbling" in their ears.

"Squeak!"

The fiery red barrel slowly dimmed, and there was a slight sound, and wisps of green smoke slowly emerged from the gun.

"It's successful, it's not stuck, it's finally no stuck!"

The people of Zhongshan screamed excitedly, and giggles came out of their mouths.

They have been waiting for this day for too long, you must know that the military region issued the task of developing a 12.7mm machine gun, it was two years ago, and now all the problems have been solved.

"Why don't you hurry up and put away the aviation machine guns and forget about the secrecy regulations?"

Hearing Zhong Cheng's reprimand, several technicians hurriedly covered the gun with a wire cage, and then covered it with a green canvas.

Zhong Cheng glared fiercely, and then shouted:

"Experimental Army-type 12.7 mm heavy machine gun."

"Hey!"

The gun carriage looked heavy, and the soldier he was carrying was crushed to a footing. And even heavier were the machine guns, and the two soldiers who carried them were red-faced.

It bears a slight resemblance to the 28 General Purpose Machine Gun, but instead of a heat dissipation sleeve, it has a thick, long barrel.

"Squeak, squeak!"

The barrel quickly twisted into the gun.

"The 177th test of the 12.7mm heavy machine gun begins, firing at full speed!"

With a small green flag waving.

"Knock knock!"

The dull sound of gunfire just now reached everyone's ears again, but people were smart enough to wear sound-isolating headphones.

The heavy body of the gun was pressed against the gun carriage, and even the huge recoil did not make it move half a minute. Only the rubble on the ground pulsed regularly, and if it touched the flames from the muzzle, it would be blown away by the air waves.

"Knock knock!"

The poor tank began to tremble again.

"Smack, smack, smack!"

Tracer bullets kicked up clouds of smoke, mostly on the tank body. At this distance, you can still hit the target, and the accuracy is good.

Under the impact of the bullet, the thin layer of armor of the tank shattered, and soon even one side of the body collapsed.

"The rate of fire is 600 rounds, and the muzzle velocity is 740 meters per second."

The bullet for the heavy machine gun was originally selected as 12.7X99, but it was changed to 12.7X108. It is said that this is what Commander Qin meant, firstly, to increase the weight of the warhead, and secondly, to be able to improve it in the future.

On the basis of German gunpowder, Gu Xin'an and several chemists came up with a new type of propellant. It burns fast and has little residue. The bullets produced are well received, but the cost is higher.

"The third snap chain!"

"The fourth bullet chain!"

"Fifth ......, the muzzle of the gun is overheated, stop shooting!"

As a red flag waved, the gunfire stopped.

Zhong Cheng observed which tank from the artillery team mirror, and could see that the bullets just now were not widely dispersed.

"Proceed to the next test."

"Hey!"

Several of the fighters brought another gun mount, this one was much thicker than the one just now. With adjustments, the machine gun was erected high.

"The 30th test of the 12.7 mm heavy machine gun anti-aircraft fire begins."

With the order, a huge Kong Ming lantern floated on the opposite hill. However, it is tied to a rope and can only float from side to side in the breeze.

"But I'm going to hit!"

In the last test, the machine gun carriage was designed to be too light. It was only two short shots, and the machine gun actually fell without warning, and it also smashed the soldier who was shooting. In the end, I can only press a sandbag on the tripod, and I can barely shoot at short points. If you shoot, up to twenty rounds, the muzzle of the gun will be pointed at the sky.

"It's going to hit!"

Zhong Cheng also prayed silently.

Because of the lag in the design of heavy machine guns, aircraft factories and armored vehicle factories are full of complaints.

Aircraft factories, in particular, have been in dire need of large-caliber machine guns for experimentation in preparation for new aircraft designs.

Unfortunately, the first aviation machine gun did not fire after it went into the sky. When I came down to take a look, I found that after the plane made a few tactical moves, the bullet chain was knotted.

After refinement, the machine gun went to the sky again. As a result, more than 30 bullets were fired, and it stopped ringing, and when I came down, I saw that it was actually stuck.

And the army type also had this problem, and it took almost two months of research to solve it.

The aircraft factory finally came up with some data, but the damn problem came again.

This time it was a direct explosion, and if the pilot hadn't just looked down at the data, his head would have been split in half.

Since then, the machine gun has been tinkering until last month, when the problem was finally solved. Intensive experiments have been carried out so far, and no other faults have been found.

"Ready, hit!"

"Knock knock!"

The anti-aircraft machine gun was already equipped with an optical sight, and the shooter opened fire the moment the front sight was aimed at the Kong Ming lantern.

One by one, the bullets slid down the flexible cartridge belt into the chamber.

This is made according to Qin Lang's sketch, which is a small iron box one after another. It looks like it's very simple, but it does reduce the chance of jamming, and the effect is even more obvious when installed on an airplane.

Looking at the fiery tracer bullets, the shooter noticed that he was aiming a little low. He lifted the muzzle of his gun slightly, and pulled the trigger back.

"Knock knock!"

A few bullets flew out with a whistling sound, and soon got into the Kong Ming lantern. A tracer bullet with a red light ignited the paper, and a fire immediately appeared in front of everyone's eyes.

"Hit, continuous strafing test."

"Whew!"

Another Kong Ming lantern was put up, but this time it was no longer tied to a rope, but floated in the air with the wind.

"Knock knock knock!"

In the continuous sound of gunfire, fiery tracer bullets slid over the Kong Ming lantern from time to time, and soon it became full of holes.

"Huh!"

Finally, instead of rising, it fell rapidly, and finally became a pile of debris.

Seeing this scene, Zhong Cheng said with great ambition:

"Send a report to Commander Qin, the design of the 12.7mm heavy machine gun is complete, please inspect it!"