The shells of the mortar are similar in structure to the grenade used in the grenades, but they differ in caliber and charge.

　　In order to make the mortar hit farther, all mortar shells used non-flooding gunpowder as the propellant. The warhead was not filled with dangerous bitterness, but continued to use black powder as explosives.

However, the difference between the 55mm mortar shell and the grenadier grenade is that the propellant of the mortar is integrated with the projectile body, in the propellant tube below the projectile, instead of like the grenade of the grenade. , The propellant and the warhead are separated.

　　 The propellant is separated from the warhead, so the production is naturally much simpler. But to combine the two, the production difficulty is increased many times.

　　 The four great alchemists developed mortars a long time ago, but the real mortar shells were developed more than a month ago.

After all, the propellant and the warhead are combined together. The flash hider at the bottom of the propellant tube, the propellant, the explosive charge in the warhead, the detonator on the top of the warhead, and the percussion needle cap are all assembled in one projectile In addition to the four balanced tail fins at the rear, with the processing technology of this era, the difficulty of production can be imagined.

　　 So almost all the mortar shells used by the Burst Bear Brigade are handcrafted.

　　 Hundreds of craftsmen worked hard for more than a month, only then produced more than 300 qualified mortar shells. And these more than 300 artillery shells, just in the previous test and training saccade method used a hundred.

　　In other words, this time the Burst Bear Brigade brought out all the twenty 55mm mortars, but they really need to be used. One mortar can fire ten rounds at most...

　　 But even ten shells are definitely invincible in this era.

　　 The charge of the warhead of the 55mm mortar shell is twice as large as the charge of the grenade used by the grenades, reaching 400 grams.

　　 400 grams of black powder plus a handful of iron sand, its explosive power is extremely terrifying. At the time of the experiment, if such a mortar bomb exploded on flat ground, its killing radius could reach 12 meters! This kind of power is twice as powerful as the killing power of a bullet toss!

　　 The most important thing is that the longest effective range of the 55mm grenadier is not only six or seven hundred meters, but can reach two thousand six hundred meters!

what does that mean? It's very simple. If you give the mortar enough ammunition, in principle, a 55mm mortar can defeat the entire grenadier army-you can't hit people with the bullets, and no matter how large the number is, it will be useless. But other mortars can rely on four times the effective range. Flying a kite can walk a grenadier unit with a range of only six to seven hundred meters...

　　 It is not an exaggeration to say that this 55mm mortar produced by Shixiong with the four great alchemists is definitely the top military level of this era!

This mortar shell, which is a collection of more than two hundred years of memory and experience of Stone Bear, and months of hard work by the four great alchemists, was passed into the barrel by the loader from the muzzle, and the loader immediately flashed aside. , And then squatted down with his back to the muzzle, his head drooping. This posture can protect the eardrum of the loader and prevent the eardrum from being damaged by the burst of sound during launch.

　　 The aiming hand and the ammunition hand are also squatting in the same posture, but they have to hold the mortar bracket to prevent the muzzle from jumping at the moment of firing.

　　 The shell fell down the barrel. When the flash cap at the bottom of the propellant tube hits the bulge at the bottom of the barrel, the flash cap was instantly activated, and then the unflooded gunpowder in the propellant tube was also ignited.

　　 Accompanied by a low burst of sound, a flame rushed out of the muzzle along with the cannonball. The next moment, there was a strange whistling sound in the sky. That's the screaming noise of a mortar shell that cuts through the air.

Most of the soldiers of the Burst Bear Brigade have heard this sound, and have heard it more than once, so most of the soldiers of the Burst Bear Brigade looked up at the black spot that crossed the sky, looking forward to the explosion. The sound sounded.

　　 But the French people in the residential area were confused. They couldn't think of why such a sound appeared in the clear sky.

　　 Well, let’s not say that although this voice sounds a bit sharp, it sounds nice...

　　 But this is the sound that sounds good to French people, but it is the out-and-out roar of death!

In just over three seconds, this screaming sound crossed the sky over a thousand meters long, and then under everyone’s gaze, this mortar shell that was used in actual combat for the first time in the world It exploded less than 20 meters away from the stone wall!

　　 After a burst of dazzling light flashed, there was a huge explosion, followed by black clouds and mist rising up.

　　 Although the impact point of the first shot in actual combat is still more than 20 meters away from the stone wall, the stone bear who has been watching with the telescope nodded with satisfaction.

　　The first time I fired a cannon in actual combat, it was able to shoot such a small error at a distance of a thousand meters, which shows that the normal training of the aimer is extremely effective.

What made Shixiong smiled was that although the impact point was still more than 20 meters away from the stone wall, a Frenchman standing on the stone wall was still unlucky enough to be hit by a piece of flying cannonball fragments. bingo. So this unlucky ghost planted his head from the stone wall...

Although the theoretical damage radius of a 55mm mortar shell is 12 meters, the warhead is loaded with 400 grams of black powder after all, let alone a large amount of iron sand which is very insidious by the stone bear... ....

　　 Four hundred grams of black powder explodes with great power~lightnovelpub.net~Some fragments or iron sand can often fly dozens of meters away. It is estimated that this hapless man was hit by a fragment.

　　 was hit by fragments at a distance of 20 meters. If the fragments are small and the limbs are okay, the greatest possibility is direct amputation. But if the fragments are a little bigger, and they still hit the torso or head, then this hapless one will only die!

　　 Just kidding, this is a cannonball, not a lead shot from a musket. When I was fighting the Cree and the Poitan before, after a grenade fired with a grenadier exploded, if a piece of matchbox-sized fragments hit the target's neck, it would directly cut off the head!

　　 Ishikuma didn't bother to worry about where the hapless guy was shot, because with the explosion, the French on the stone wall suddenly rioted. The thirty or so Frenchmen who had just exposed their heads on the stone wall immediately disappeared. Then, the two defensive artillery also began to move. It seems that the French realized that something was wrong, and they wanted to use artillery to carry out the action. Fight back.

　　 Is this possible? On one side are stupid artillery, and on the other side are smart mortars. How can this be compared?

　　 Just when the French artillery moved a little bit, the sighting hand had once again completed a new calculation. Using a precious shell to locate is not a joke. If the second shell fails to find the target, Mad Bull can throw this sight directly onto the stone wall as a shell...

　　 So, after only ten seconds, the sharp whistling sound cut through the sky again...

　　:. :