In order to complete the trial production and test explosion of the blaster as soon as possible, the soldiers of the engineer platoon had just finished making the blasting barrel and immediately put into the construction of the test blast fortification, and Zhang Wei planned to use a semi-concealed bunker to test the power of the blasting cylinder.

In addition, it is also prepared to detonate on flat ground to observe the blasting effect more intuitively.

The efficiency of teaching the brigade to carry out this blasting canister is very high, from Zhang Wei's idea to the purchase of raw materials, to the final manufacture of the preparation for the test explosion, it took only a week, and this speed is also quite fast, that is, the soldiers of the engineer platoon were tossed a lot.

The soldiers of the engineer platoon picked up all kinds of workmanship tools and excavated in the open space of the training ground, He Jinhai commanded the excavation on the side, and more than 40 people built two semi-concealed bunkers together, with the command of professional engineer officers, the excavation speed was still very fast, first digging a large pit two and a half meters deep in the ground, and then using logs and sandbags to build an exposed bunker building, opening a standard firing port, and then loading sandbags around it.

Two semi-concealed bunkers gradually took shape as they were covered with floating earth, and Zhang Wei ordered them to be detonated on the flat ground, so the soldiers temporarily dug trenches on the flat ground, just enough to accommodate the blasting canisters.

The construction of the engineer platoon lasted about half an hour, and the four squads of engineers completed the construction of the fortifications required for the test explosion, and met the various conditions required for the test explosion.

"Captain, the fortifications have been dug and can be blasted." He Jinhai replied in a straight manner.

"Okay, let's use a big blasting canister to blast first, in terms of quantity, how many do you think Jinhai should use?" Zhang Wei not only had to test the power of a single one, but also to see how many blasting canisters were needed to take out a bunker, and where and in what way to arrange the best blasting effect, so that it was easy to calculate and use a sufficient number of blasting canisters when fighting.

"According to the previous experience of the subordinates, it takes four or five kilograms of explosives to blow up a concealed bunker like the one in front, and the explosives are wrapped around the bunker.

"Seven pounds? Well, let's try out the two big blasters first! Tell the brothers to pay attention to safety, this thing is the first time to use, once there is an accident when detonating, quickly throw away the blaster, it is important to save your life, and you can't put your life into it because of a new gadget. ”

The blaster was just made out, no one knew what the explosion effect was, and I didn't know if there would be an accident, life was the most important, Zhang Wei didn't want the blaster to have an accident and lost his sappers.

He Jinhai nodded: "Don't worry, captain, the people I chose to blast are all squad leaders and deputy squad leaders, and they have rich experience in the army. ”

"Okay, let's get started."

"Yes!" He Jinhai saluted and ran back to the soldiers of the engineer platoon, Zhang Wei and the soldiers of the engineer platoon stood side by side, ready to observe the blasting effect.

"All of them! Attention! He Jinhai ordered, and the soldiers of the engineer platoon stood on the ground with the tools in their hands and stood upright.

"I order, the blasting barrel test explosion operation starts now, first carry out the 3.5 kilogram large blaster blasting semi-hidden bunker experiment, and then carry out the first group of test explosions!"

"The first group of test explosions, using two 3.5 kg long blasting canisters, blasting requirements: the assault soldiers hold two blasting canisters, advance to the outside of the concealed bunker, and throw the blasting canisters into it through the firing port of the concealed bunker, which is used to test the blasting ability of the two blasting canisters to detonate directly in the concealed bunker, do you understand!"

"Understood!" The soldiers replied in unison.

"A squad leader, a squad deputy out of the ranks!" He Jinhai called out the two of them, and the two soldiers with twenty rings on their shoulders immediately came out of the ranks, He Jinhai followed Zhang Wei's instructions, life first, so the selected demomen were all at the level of squad leader and deputy squad leader, and the ones who came out were a sergeant squad leader and a sergeant deputy squad leader.

Tall and strong, they are all veterans who have fought in war.

"The first group of demomen, hand it over to you, you repeat the blasting order just now"

"Understood! Throw two blasters into a semi-hidden bunker and detonate them! Observe the blasting effect! The sergeant squad leader repeated He Jinhai's order.

"Okay, let's prepare for blasting, remember to pay attention to safety, if there is a problem with the blasting canister, throw things away immediately, save your life first, this is the captain's order."

He Jinhai ordered the blasting to begin, returned to the team, and was by Zhang Wei's side to observe the blasting effect.

After He Jinhai reminded them to pay attention to safety, he first unloaded the excess equipment on his body with the assistance of other soldiers, and after twenty rings, all the grenades and bullet bags were unloaded, which was to reduce the burden and respond in time if there was an accident.

The two of them respectively took a 3.5 kilogram long blasting cylinder, this batch of blasting cylinders has just been manufactured, without painting, and it looks like just two ordinary seamless steel pipes on the outside.

"Report sir, you're ready!" "Captain, it's okay.

He Jinhai said. Okay, start blasting! "Everything is ready, just wait to see the blasting effect.

After Zhang Wei finished speaking, He Jinhai took out the red command flag and whistle that the engineer officers would distribute, blew the whistle, and waved the red command flag, which was the signal to start the operation.

The two men were armed with blasters and rushed forward, and the soldiers of the engineer platoon were about 250 meters away from the hidden bunker they had dug.

The two of them advanced towards the concealed bunker with a speed close to an infantry assault, advanced to the bunker, pulled the lead, and threw two blasters into the bunker in turn, and the whole process was extremely smooth.

After throwing, the two quickly retreated and lay down on the spot a hundred and fifty meters away from the bunker. Seeing the two of them throwing the blaster in, Zhang Wei, He Jinhai, and the surrounding sappers all squatted down, waiting for the expected explosion, but the blaster was thrown in for half a minute, and no explosion was heard.

"What's the situation?" The soldiers chattered.

Zhang Wei also wondered, threw it in, and it didn't explode, but he still squatted in place, waiting for the explosion.

After about twenty seconds of explosion, there was finally an explosion in front of me, and a puff of smoke rose, followed by sandbags and sawdust.

"Good!" The soldiers cheered, the effect of the explosion was indeed good, even with the naked eye, it could be seen that the structure of the bombed semi-hidden bunker had been damaged, and there were obviously logs in the body of the fort in the things that were blown up to the sky.

The effect of the destruction was very good, Zhang Wei and He Jinhai, who were squatting on the ground, also stood up, the power of the blaster was not weak, of course they were happy.

The brethren of the engineer platoon were also pointing at the fact that this weapon, which had never been used before, turned out to be so powerful, that the two Demomen began to run back.

The crowd was still basking in the joy of the power of the blaster.

Suddenly, another explosion sounded, and no one was prepared for this sudden explosion, and everyone instinctively fell to their stomachs.

"Anyone is hurt, look at the two Demomen in front." Zhang Wei shouted.

"Captain, no one was hurt!" He Jinhai glanced forward, the two Demomen had already passed the dangerous distance, so the second explosion did not cause them any damage.

"Jin Hai, what is the situation, the time interval is too long, under normal circumstances, this thing is the same as a grenade, even if it is thrown by two people, the explosion time before and after cannot have this effect." Zhang Wei asked.

He Jinhai is a sapper and plays a lot with explosives, Zhang Wei's knowledge of explosives is not as rich as Jinhai, and he still needs to consult He Jinhai about this matter.

The sudden second explosion, which caused no casualties, just startled everyone.