The 12.7×108 mm cartridge is a widely used heavy-machine-gun round in Soviet/Russian and export weapon systems (e.g. DShK, NSV, KORD). It is intended for heavy machine guns and anti-material roles against personnel, light armour and sensitive equipment. The family comprises standard ball rounds, armour-piercing/incendiary types (for example the B-32 class), tracer and specialised projectiles (e.g. items marked MDZ in certain catalogues).
Figures below are typical ranges derived from common technical references. For contractual use or exact ballistics consult the manufacturer's technical datasheet for the specific round designation.
Tactical & technical data — 12.7×108 mm (typical)
| Parameter | Typical values |
|---|---|
| Caliber / cartridge | 12.7×108 mm |
| Case length | 108 mm (as in cartridge designation) |
| Projectile mass (typical) | ≈ 45–52 g (varies by projectile) |
| Complete round mass | ≈ 100–120 g (approx., type dependent) |
| Muzzle velocity | ≈ 820–900 m/s (type dependent) |
| Muzzle energy (approx.) | ≈ 18–20 kJ |
| Effective range (MGs) | ≈ 1,500–2,000 m (engagement vs. personnel/light vehicles) |
| Typical roles | heavy machine guns, anti-material engagements, vehicle-mounted and fixed installations |
| Note | penetration and terminal effects depend strongly on projectile type (AP, AP-I, MDZ, HE-T etc.) and range |
Common projectile types (selection)
- Ball (standard) — general purpose full-metal projectile.
- B-32 — typical armour-piercing/incendiary class used against light armour and vital components.
- MDZ — manufacturer/designation for special variants (e.g. incendiary/tracer or other); exact definition varies — verify by producer’s datasheet.
- Tracer / Incendiary — tracer and incendiary combinations for fire control and enhanced effect.
- Training / Inert — practice rounds without explosive/incendiary fillers for training/logistics.
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