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12,7mm cartridge wiht armour-piercing incendiary bullet БС
| Index | 7-БЗ-1 |
| Case material / Jacket material | Brassl / Bimetal |
| Average bullet velocity V25, m/s | 810-825 |
| The maximum powder gass pressure Pav, Average/Maximum, kg/sm2 | 3100/3400 |
| Bullet mass, g | 56,60 |
| Cartridge mass, g | 145,00 |
| Accurancy R50 at distance 300m*, sm | 18* |
| The quantity at cartridges in box, pcs | 160 |
| Finction | Intended for opponent"s living force destruction,
equipped with personal armour protection facilities, land and low-flying technique destruction at long distances |
| Special bullets functions | Armour-piercing bullet action on a 20-mm armour plate located at the angle of 200 at distance from 545 to 782 m, depending on weather conditions - not less than 80%. Incendiary bullet effect on petrol, situated behind a 20-mm armour plate at 100-m distance - not less than 85%. |
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