Technical specifications
Cartridge characteristics
Purpose
|
or commercial and amateur hunting
|
Calibre, mm
|
12.7х108
|
Cartridge length, mm
|
145.8-147.0
|
Cartridge weight, g
|
130-137
|
Mean value of bullet velocity, m/s
|
810-825
|
Fire grouping, R50, at the range of 300 m, cm
|
≤ 18
|
Maximum gunpowder gas pressure, average/maximum MPa (kgf/cm2):
|
|
- Pmax.av. ≤ 303.8 (3100)
|
|
- Pmax. ≤ 323.5 (3300)
|
|
Gunpowder charge characteristics
Gunpowder type
|
pyroxylin sporting-hunting without pore-forming agent
|
Gunpowder brand
|
Irbis VL-1, Irbis VL-7 or analogues
|
Gunpowder weight, g:
|
|
- Irbis VL-1
|
18.7
|
- Irbis VL-7
|
17.0
|
Powder weight, g
|
1.4-1.5
|
Bullet characteristics
Bullet type
|
full metal jacketed with lead core (FMJ)
|
Bullet jacket
|
bimetal
|
Bullet weight, g
|
48.2
|
Bullet diameter, mm
|
12.95-13.00
|
Case characteristics
Case shape
|
bottle-shaped
|
Case material
|
brass
|
Case length, mm
|
108
|