The bore of an AK-47 is 7.62mm. This measurement refers to the nominal diameter of the barrel's bore, which is designed to fire the 7.62×39mm cartridge.
Understanding the AK-47 Bore
The term "bore" in firearms primarily refers to the internal diameter of the barrel. For the AK-47, the 7.62mm designation is directly related to the cartridge it uses, the 7.62×39mm.
- 7.62mm: This number indicates the diameter of the bullet that passes through the barrel. It's a widely recognized caliber, especially for military rifles.
- ×39mm: This part of the cartridge designation refers to the length of the cartridge casing.
This caliber choice is known for its effectiveness and widespread use in various military and sporting firearms globally.
Key Specifications of the AK-47
Beyond its bore diameter, the AK-47 features several notable specifications that contribute to its renowned reliability and performance.
| Specification | Detail |
|---|---|
| Cartridge | 7.62×39mm |
| Bore Diameter | 7.62mm |
| Rifled Bore Length | 369 mm (14.5 in) |
| Barrel Length | 415 mm (16.3 in) (Overall length) |
| Action | Gas-operated, long-stroke piston, closed rotating bolt |
| Rate of Fire | Cyclic: 600 rounds/min; Practical: 40-100 rounds/min |
For more detailed information on the AK-47 and its specifications, you can refer to comprehensive firearm resources such as its Wikipedia page.
The Significance of Rifling
While the bore diameter defines the caliber, the internal structure of the bore is also crucial. The AK-47's barrel features rifling, which are helical grooves that impart a spin to the bullet as it travels down the barrel. This spin stabilizes the bullet in flight, significantly improving its accuracy and range. The rifled bore length of the AK-47 is specifically 369 mm (14.5 inches).
