Description
The 14.5mm 57-BZT-561SM cartridge with modernized BZT-M armor-piercing incendiary tracer bullet is used in the 14.5mm Vladimirov KPVT heavy machine gun and its derivatives.
| Caliber, mm | 14,5 |
| Cartridge weight, g | 187+3-7 |
| Bullet weight, g | 59,3–61,3 |
| Cartridge length, mm | 156-1,5 |
| Average bullet velocity V25 at the barrel length of 1,350 mm, m/s | 995-1015 |
| Bullet dispersion R50 at 300 meters, not more than, cm | 20 |
| Tracer ignition delay distance from the muzzle, m | 50-120 |
| Range at which bullets penetrate a 20mm thick armor plate at an angle of 20 degrees from the vertical, m | 100 |
| Cartridge case material | steel |
