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12.7x108mm INFANTRY WEAPONS
Large Calibre Rounds
Mission 12.7x108mm rounds are designed for the DShK, NSV (NSVT), Kord, A-12.7A heavy machine guns and OSV-96 and KSVK sniper rifles. There are several modifications of rounds for various purposes.
General description The BS round with an armourpiercing/incendiary bullet (7BZ-1) is designed to engage light armoured targets, personnel and weapon systems behind light covers, as well as low-flying aircraft. It can also be used to set targets on fire. The bullet is painted red with a black tip. The BZT-44 round with an armour-piercing/ incendiary/tracer bullet (57-BZT-542) and the BZT-44M round with a modernised armourpiercing/incendiary/tracer bullet (57-BZT542M) are designed for fire adjustment and target designation. They can be employed to set targets on fire. The bullet has a violet-red tip.
AMMUNITION
The B-32 round with an armourpiercing/incendiary bullet (57-BZ-542) is designed to defeat light armoured targets, personnel and weapon systems behind light covers, as well as low-flying targets. The bullet has a black-red tip. The 1SL two-bullet round (index 9-A-4012) is designed to kill personnel, unarmoured vehicles and firing assets. It is fired from the YakB-12.7 high-rate-of-fire machine guns mounted on the Mi-24 gunships. The bullet has no distinguishing colour. The 1SLT two-bullet round with a tracer bullet (9-A-4427) is designed for fire adjustment and target designation, as well as engagement of live targets, soft-skinned materiel and weapon systems. It is fired from the YakB-12.7 high-rate-of-fire machine guns mounted on the Mi-24 helicopters. The bullet has a green tip. The 7Kh1 blank round is designed to imitate shot sound. A special blank firing system consisting of a muzzle attachment cap and special inserts in the machine gun receiver and round case is used to fire the rounds. The 7Kh2 drill round is designed to train personnel to charge belts and load weapons. The bullet has no distinguishing colour. In order to distinguish between drill and live rounds, cases of the former have longitudinal extrusions. The bullet firmly sits in the case due to additional reduction of the case mouth.
Basic specifications Designation
BS
Calibre, mm Weight, g: round first/second bullet Round length, mm First/second bullet muzzle velocity, m/s Accuracy of fire at 300 m (R50), cm Penetration, m: 15mm armour 20mm armour set at 20° Tracing time, sec Tracing range, m Trace deviation from barrel end, m Case material
R
O
S
O
B
BZT-44 B-32 (BZT-44M)* 12.7x108
141 128 55.4 44 147 147 818 818 max 19 max 19
1SL
133.5 145 142 80.1 48.2 31/27 31/27 147 147 147 112 818 735/680 730/700 max 20 max 50 max 50
up to 100 up to 750 up to 100 min 3 50-120* brass
O
R
O
contents
N
1SLT 7Kh1 7Kh2
E
X
P
115 47 147
min 2.9 1,000
O
R
T
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