12.7 nsv

[J]

Haluaako joku kertoa NSV 12.7 ammustarvikkeen tiedot? Siis sen paukun mitä ittkk:ssa käytetään. Luodin paino, V0, E0 jne. Hammer varmaan ainakin tietää.

[Ritter]

Tässä olis joitakin venäläisen 12,7mm D-luotisen panssaripatruunan tietoja.

-Patruunan paino....132-140g
-Luodinpaino....50-51,1g
-Panoksen paino....17,5-19.0g
-Tarkkuus ....<8cm 140m matkalla(50 laukauksella)
Pmaks....3100kg/cm2
V0....815m/sek.

[J]

Kiitos.

[Hammer]

Vanhemmat paukut:
B-30 AP 51,9 810-825 Steel core bullet, tip filled with lead
T-38 Ball tracer 43,5 840-860 Lead core bullet with tracer, green colour bullet tip
B-32 API 48,2 810-825 Steel core bullet with incendiary in tip
BZT-44 API-T 43,7 840-860 Steel core bullet with incendiary in tip, with small tracer container
BZF-46 API (Ph) 47,0 810-825 Steel core bullet with White Phosphorus in rear steel container. Black/yellow coloured bullet tip
BZ-41 API (special) 53,8 810-825 Tungsten carbide core bullet with incendiary in tip
MD-46 HE 41,0 840-860 KV-11 nose fuzed projectile filled with 2,4g PETN
MDZ-46 HEI 41,0 840-860 KV-11 nose fuzed projectile filled with 1,5g PETN + 1,2g incendiary
MDZ-3 HEI 38,0 875-890 Projectile filled with 1,8g PETN + 1,2g incendiary. Two layer charge or alternating HE/I charge. Internal air compresion fuze. l=53,2mm
MDZ-3 HEI 45,0 840-860 Projectile filled with 2,0g PETN + 2,2g incendiary. Two layer charge with internal air compresion fuze. l=63,5mm

[Hammer]

Uudemmat paukut:
B-32 API 48,2 810-825 Steel core bullet with incendiary in tip
BZT API-T 44,0 840-860 Steel core bullet with incendiary in tip, with large tracer container
BS API (special) 55,8 810-825 Tungsten carbide core bullet with incendiary in rear container
ZP incendiary ? ? "Instantaneous incendiary " projectile, construction unknown
MDZ-3 or ZP? HEI-T 38,3-39,6 875-890 Pointed boattail projectile filled with HE charge. Incendiary in nose is compressed on impact and activates blasting cap and main charge. Tracer container in base
MDZ HEI 43,5 840-860 V-166 nose fuzed projectile filled with 2,3g TNT + incendiary. Boattail projectile
MDZ HEI 44,5 840-860 Projectile filled with HEI charge, internal air compression fuze. Pointed boattail projectile
1SL Duplex Ball 31/31g 735/680
1SLT Duplex Ball-T 31/27g 730/700
"Snaiperskii" special sniper 56,0 730 Solid brass bullet with slightly longer ogive shape; the cylindrical part of the bullet is reduced in diameter from 13,03 to 12,6mm to reduce barrel wear
CHOLOSTOJ Blank / / Conventional blank, ol=112mm, om=80,1g green cardbord cover
OZ-B 50 Blank / / Czech blank cartridge, ol=59,0mm, om=54,5g. For Czech "Beranidlo" device

[Hammer]

AP-I B32Round length: 147 mm
Case length: 108 mm
Rim diameter: 21.7 mm
Bullet diameter: 12.95 mm
Round weight: 130-137 g (brass case)
Bullet weight: 47.4-49 g
Muzzle Velocity (MV): 810-825 m/s
Muzzle energy: c. 16,100 J
Maximum chamber pressure: 304 MPa (44,000 psi)


Abridged ballistic table, B32
Range m Vertex m Time of flight, secs Velocity m/s Energy J
100 0.02 0.13 780 14,693
200 0.09 0.26 741 13,260
300 0.20 0.40 703 11,935
400 0.36 0.55 666 10,712
800 1.8 1.21 532 6,835
1200 5.2 2.06 416 4,179
1600 12.5 3.16 328 2,598
2000 26.1 4.47 287 1,989

[J]

Kiitoksia vielä tätäkin kautta herra Hammerille.