J75

J75 is a type of 7.62x39mm Soviet rifle cartridge, developed in the 1970s. It was designed to be used in the AK-74 assault rifle, which replaced the AK-47 in the Soviet military. The J75 cartridge is known for its high muzzle velocity and effective range, making it a popular choice for military and law enforcement applications. It is also used in some civilian firearms, such as the AK-74 and its variants. The J75 cartridge is available in various types, including full metal jacket (FMJ), tracer, and armor-piercing (AP) rounds. It is important to note that the J75 cartridge is not compatible with all AK-47 variants, as it requires specific modifications to the rifle's bolt and barrel to function properly.