Munitions

Cartridge 122 mm HE with full charge

Also known as
  • Nb 122 HE
  • 122 mm HE full charge
  • HE-462 full-charge cartridge
  • OF-462 full-charge cartridge
  • 122 mm HE cartridge with full charge
  • Cartridge 122 mm HE with full charge

Cartridge 122 mm HE with full charge is STV Group's Czech-made Nb 122 HE separate-loaded high-explosive cartridge for the 2S1 Gvozdika and D-30 howitzers. It pairs an HE-462 projectile, identified by STV as equivalent to OF-462, with a Ž 9-1 full propelling charge for a published 690 m/s muzzle velocity and about 15.3 km maximum range.

Cartridge 122 mm HE with full charge, 122 mm separate-loaded high-explosive cartridge, Munitions
Image source: 122 mm OF-462.jpg
Soviet-Standard 122 mm Context

The cartridge sits in the non-NATO 122 mm ammunition class used by legacy D-30 and 2S1 Gvozdika weapons. Defense News reported in 2024 that Ukraine's D-30 and 2S1 fleets still depended on Soviet-standard rounds, while STV's product pages establish compatibility rather than a named combat-use record for this specific Czech cartridge.

Sources: European states gather Soviet-style artillery rounds for Ukraine; Cartridge 122 mm HE with full charge - STV Group.

Profile / Specs

Profile

Origin
Czech Republic
Type
122 mm separate-loaded high-explosive cartridge
Service note
Contemporary Czech export 122 mm artillery ammunition

Specifications

Cartridge
Nb 122 HE
NSN
1315-16-009-0196
Cartridge type
Separate-loaded high-explosive cartridge
Projectile
HE-462, equivalent to OF-462
Propelling charge
Ž 9-1
Propelling charge type
full
Muzzle velocity
690 m/s ± 7%
Maximum range
About 15,300 m
Projectile length
552-564 mm
Projectile weight
21.76 kg
High explosive weight
3.6 kg
Fuze
RGM-2; RGM-6; V-429
Safe operational temperature range
-40 to 50 °C
Cartridge case
Fe/brass
Propelling-charge case weight
4.09/4.28 kg (Fe/brass)
Propellant weight
3.8 kg
Design documentation
OF462-23-0473 for Fe-cased charges; OF462-23-0501 for brass-cased charges
Technical specification
TP-O-230
Variants

STV markets the Nb 122 HE cartridge family in full- and reduced-charge forms for the same 122 mm D-30 and 2S1 Gvozdika firing weapons.

VariantConfigurationDesignation notes
Cartridge 122 mm HE with reduced charge, 122 mm separate-loaded HE artillery cartridge, MunitionsCartridge 122 mm HE with reduced chargeReduced-charge Nb 122 HE cartridge

Uses the same HE-462 projectile family but replaces the Ž 9-1 full charge with a Ž 10 reduced propelling charge for lower published velocity and range.

Sources: Cartridge 122 mm HE with reduced charge - STV Group

Firing Weapons

STV Group lists this full-charge Nb 122 HE cartridge for 122 mm 2S1 and D-30 howitzers.

Firing weaponWeapon typeFiring evidence
D-30 122 mm howitzer, 122 mm towed howitzer, ArtilleryD-30 122 mm howitzer122 mm towed howitzer

STV Group says the full-charge Nb 122 HE cartridge is intended to be fired from 122 mm D-30 howitzers.

Sources: Cartridge 122 mm HE with full charge - STV Group, Ammunition 122 mm for cannon D-30 and 2S1 Gvozdika - STV Group

2S1 Gvozdika, 122 mm tracked self-propelled howitzer, Artillery2S1 Gvozdika122 mm tracked self-propelled howitzer

STV Group says the full-charge Nb 122 HE cartridge is intended to be fired from 122 mm 2S1 Gvozdika howitzers.

Sources: Cartridge 122 mm HE with full charge - STV Group, Ammunition 122 mm for cannon D-30 and 2S1 Gvozdika - STV Group

Component And Charge Layout

STV describes the full-charge cartridge as separate-loaded 122 mm HE ammunition built around an HE-462 projectile and a Ž 9-1 propelling charge.

ElementDesignationDocumented detail
ProjectileOF-462, 122 mm high-explosive fragmentation shell, MunitionsHE-462 / OF-462STV identifies HE-462 as equivalent to OF-462, with a 21.76 kg projectile and 3.6 kg explosive charge.
Propelling chargeŽ 9-1Full-charge propelling package with Fe or brass cartridge cases and 3.8 kg propellant weight.
FuzesRGM-2; RGM-6; V-429Published fuze options for the full-charge cartridge.
Companion cartridgeCartridge 122 mm HE with reduced charge, 122 mm separate-loaded HE artillery cartridge, MunitionsReduced-charge Nb 122 HEUses the reduced Ž 10 charge and shares the same D-30 and 2S1 Gvozdika compatibility family.

Sources: Cartridge 122 mm HE with full charge - STV Group; Cartridge 122 mm HE with reduced charge - STV Group; Ammunition 122 mm for cannon D-30 and 2S1 Gvozdika - STV Group.

Media

Cartridge 122 mm HE with full charge Images

Cartridge 122 mm HE with full charge, 122 mm separate-loaded high-explosive cartridge, Munitions - view 1
Source: 122 H 38 shell.JPG
Related Weapon Systems
122 mm artillery round, 122 mm artillery ammunition, MunitionsMunitions122 mm artillery round122 mm artillery ammunitionThe 122 mm artillery round is a family-level label for Soviet-origin medium-caliber artillery ammunition used by D-30-type towed howitzers and 2S1 Gvozdika self-propelled howitzers. Manufacturer and military references describe separate-loading HE projectiles with full or reduced propelling charges, while U.S. security-assistance reporting documents 122 mm artillery rounds among ammunition committed to Ukraine and TWZ reporting describes a pair of 122 mm rounds as a standard AQ-400 Scythe payload.
30 mm x 165 HEI-T round, 30x165 mm high-explosive incendiary tracer cartridge, MunitionsMunitions30 mm x 165 HEI-T round30x165 mm high-explosive incendiary tracer cartridgeThe 30 mm x 165 HEI-T round is a Soviet-origin high-explosive incendiary tracer cartridge in the 30x165 mm autocannon family, with the 3UOR6 designation used for a closely documented Russian-service round. STV GROUP, MSM Group, Yugoimport, METIS, and ordnance references tie the cartridge family to 2A38, 2A42, and 2A72 automatic cannons, making the round relevant to BMP-2, BMP-3, BMD-family, BTR-80A, Tunguska, and other 30x165 mm gun platforms.
3OF56 122 mm HE-Frag Projectile, 122 mm high-explosive fragmentation projectile, MunitionsMunitions3OF56 122 mm HE-Frag Projectile122 mm high-explosive fragmentation projectile3OF56 is a Soviet-era 122 mm high-explosive fragmentation artillery projectile for D-30/2A18-family guns and the 2A31 gun of the 2S1 Gvozdika. Public references do not describe the designation consistently: Fenix Insight identifies it as a nose-fuzed, boat-tailed, spin-stabilised HE-frag projectile, while U.S. WEG/FAS tables place a 3OF-56 complete projectile weight in a rocket-assisted ammunition row for the D-30A and 2S1.

Sources

Cartridge 122 mm HE with full charge - STV GroupPublisher: STV Group | Note: Supports the full-charge Nb 122 HE cartridge designation, its 2S1 and D-30 compatibility, the Czech manufacturer context, OF-462/HE-462 equivalence, component designations, NSN, and published technical data. | Accessed: 2026-06-29Ammunition 122 mm for cannon D-30 and 2S1 Gvozdika - STV GroupPublisher: STV Group | Note: Supports the STV ammunition-family grouping for D-30 and 2S1 Gvozdika howitzers, including the full- and reduced-charge cartridge split. | Accessed: 2026-06-29Cartridge 122 mm HE with reduced charge - STV GroupPublisher: STV Group | Note: Supports the reduced-charge companion cartridge, its Ž 10 propelling charge, shared HE-462 projectile family, and lower published velocity/range. | Accessed: 2026-06-29European states gather Soviet-style artillery rounds for UkrainePublisher: Defense News | Note: Provides background on current demand for Soviet-standard 122 mm ammunition and states that Ukraine's D-30 and 2S1 Gvozdika howitzers require non-NATO rounds; it is not direct evidence that this exact STV cartridge was used in Ukraine. | Accessed: 2026-06-29122 mm OF-462.jpgPublisher: Wikimedia Commons | Note: Supports image provenance for a 122 mm artillery shell photograph used on the page. | Accessed: 2026-06-29122 H 38 shell.JPGPublisher: Wikimedia Commons | Note: Supports image provenance for a second 122 mm shell image used on the page. | Accessed: 2026-06-29