Son of Heaven

"The [-]mm copper-cased pistol bullet is completely suitable for the May [-]th, [-]th, and [-]th submachine guns. This should belong to the product of that era." Zhang Kai glanced at it and accurately reported the relevant data of the bullet. , let Li Ji and Ma Tao next to him feel amazed.

Liang Chen was not surprised at all, Zhang Kai was so good at playing with guns, if he was not familiar with bullets, he would be a miserable person.He picked up the bullet and looked at it carefully, "Well, that's right, this is the product of the Qiyi Military Factory in [-]." Liang Chen nodded and said.

"Xiao Kai, Brother Chen, you guys are amazing, how do you know such details? Why can't we see it?" Li Ji smacked his lips, feeling like an ignorant child in front of these two people.

"Hehe, the logo of our country's bullets is mainly painted on the packing box, sealed iron box and projectile body. However, after the box has been processed, no other marks can be seen, but the age and manufacturer can be seen on the projectile body. Liang Chen flipped the body of the bullet, pointed to a few lines of small characters on the tail of the bullet, and said, "Here, here is the manufacturing factory and year code of the bullet. If the two sets of numbers are in the same direction, the upper part is the factory code and the lower part is the year." Code. If there is a decimal point mark, then the one with the decimal point is the year code. If there is a group of numbers with a 1 at the end, it means that there are several types of year codes of the manufacturer. One is that the years and codes before 1953 are common, such as "1949 "Represents 1949. The second is that the years and codes of bullets from 1954 to 1960 are different, such as "54" (or A), "B", "C", "D", "Xu", "Si", " "Sub", respectively representing 1954 to 1960. The third is after 1961, the year codes use the last two digits. The standard on this bullet is 7165, so it should be the product of July [-] Military Factory in [-]." Liang Chen gave The two of them popularized the knowledge of bullets, and Li Ji and Ma Tao were dumbfounded. They didn't expect such a simple bullet number to have such a great knowledge.

"A few simple numbers are so complicated?" Li Ji grinned, and Liang Chen spoke so much and quickly that he couldn't remember it for a while. [

"It's complicated, but the point is, this bullet has been stored for so many years, it seems to be of no use, right? Don't they all have to be scrapped? No one will dare to sell it for scrap iron." Ma Tao looked at the bullet. Huang Chengcheng shook his head, still a little discouraged.

"That's not necessarily the case. Bullets have different storage periods under different technical storage conditions. Unsealed zero ammunition can be stored for one year under ground storage conditions. Unopened ammunition packaging boxes can be stored under ground storage conditions. Keep it at 25 to 20 degrees, and the humidity is about 70 to 60. It can be stored for at least [-] years, and it can be used as it is. If it is in the condition of the cave, the storage period is at least [-] years. No problem. In the army In the warehouse, the bullets that are more than [-] years old are stored in the warehouse, and even the ammunition produced during the Anti-Japanese War can still be fired. I have seen a box of [-] bullets that have been used for more than [-] years. The bullets here are so well preserved that they have not been unpacked at all, and they are still in a completely airtight cavern, sealed with cement for a second time, and the initial moisture is sucked away with lime, so they are absolutely usable." Zhang Kai picked up He picked up the still brand new bullet, played with it fondly, said casually, and taught Li Ji and Ma Tao a little bullet lesson.