The cartridge 7.62x54 mm is one of the most famous and popular both in the domestic space and throughout the rest of the world. It is used in both military and civilian weapons. In some photographs, as well as in some gun shops, the mysterious 7.62 mm with a “silver” bullet tip is still found. What does it mean?
If we talk about the cartridge 7.62x54 mm of domestic production, then the white marking on them is less and less common. The fact is that throughout the history of the 20th century, the domestic 7.62 was repeatedly improved and reworked. Being put into service in 1891, this cartridge is used to this day, thus being one of the absolute centenarians. White (silver) markings on 7.62x54R appeared only in 1953 and were used to indicate ammunition produced using the new technology.
What kind of technology was this? Since the 1930s, work has been carried out in the Soviet Union to improve the 7.62x54R. The main task of the survey work was to reduce the cost of production of the main infantry ammunition. Based on the results of this work, cartridges 7.62x54 with an LPS bullet were created - “a light bullet with a steel core”. Before its appearance, the cores were made of lead. In addition, lead-core bullets had poorer ballistics and less penetrating power.
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They began to mark cartridges produced using technology from 1953 of the year because in warehouses and in the course still had a lot of old "lead" cartridges 7.62x54 mm, which were noticeably different ballistics. First of all, the flight path, which should ideally be taken into account when firing. Silver markings were applied until 1978, after which it was abandoned. This was due to the fact that all the remaining 7.62x54 mm cartridges were now produced according to the 1953 model of the year. It is this cartridge that is used today in such weapons as SVD, SVU, PK, PKM, PKP, SV-98 and much more.
In continuation of the topic, read about why did the Soviet Union create a revolver with alcohol cartridges.
Source: https://novate.ru/blogs/050622/63193/