![]() The 5.45×39 ammo is usually called its military designation 7N6, not the measurements of cartridges. The maximum pressure for the round is 55,114 pounds/square inches (psi). The entire cartridge has an overall maximum length of 57.00mm and includes the Berdan primer, but rounds are available with a small primer for rifles too. ![]() The nose has a hollow air chamber, which results in greater wounding upon contact. In contrast to the American custom of lead bullets the Soviet bullet features a light steel core, with a short lead filler that sits over the steel. It has a sharp spitzer tip and a base with a boat-tail. Although it isn’t as long, the bullet has a length of nearly one inch in length. The first 5.45×39 ammo was weighing between 53 and 54 grains (gr) however, modern variants are typically seen in 60 grams. The rim measures 1.5mm thick, and it houses an 5.60mm (.22 inches) diameter bullet. ![]() the shoulder’s size measures 9.25mm while the diameter of its base is 10 millimeters. The neck of the case is 6.29mm in diameter. As an intermediate cartridge, the round has an rimless bottleneck case made of steel which is 39.82mm in length. 5.45×39 ammo was designed from the ex Soviet Union and adopted by the nation’s Armed Forces in 1974.
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