Munitions

Cartridge 122 mm HE with reduced charge

Also known as
  • Nb 122 HE reduced charge
  • HE-462 reduced-charge cartridge
  • OF462-23-0699
  • OF462-23-0701
  • NSN 1315-16-009-0197

Cartridge 122 mm HE with reduced charge is STV Group's Czech-produced reduced-charge version of the Nb 122 HE separate-loaded cartridge for D-30 and 2S1 Gvozdika howitzers. It pairs an HE-462 projectile equivalent to OF-462 with a Ž 10 propelling charge, trading lower velocity for a published 12,870 m maximum range.

Cartridge 122 mm HE with reduced charge, 122 mm separate-loaded HE artillery cartridge, Munitions
Image source: 122 H 38 shell.JPG
Profile / Specs

Profile

Origin
Czech Republic
Built by
STV Group
Type
122 mm separate-loaded HE artillery cartridge
Service note
Contemporary Czech production of Soviet-pattern 122 mm artillery ammunition

Specifications

Cartridge
Nb 122 HE
NATO stock number
1315-16-009-0197
Cartridge type
Separate-loaded high-explosive cartridge
Projectile
HE-462, equivalent to OF-462
Propelling charge
Ž 10 reduced charge
Propelling charge type
reduced
Muzzle velocity
565 ± 5%
Maximum range
12,870 m
Projectile weight
21.76 kg
High explosive weight
3.6 kg
Fuze
RGM-2; RGM-6; V-429
Technical specification
TP-O-230
Design documentation
OF462-23-0699 for Fe cases; OF462-23-0701 for brass cases
Safe operational temperature range
-40 to 50 °C
Cartridge case
Fe/brass
Variants

STV's current Nb 122 HE listing separates the same HE-462/OF-462-equivalent projectile into reduced- and full-charge cartridges with different propelling charges and ballistics.

VariantConfigurationDesignation notes
Cartridge 122 mm HE with full charge, 122 mm separate-loaded high-explosive cartridge, MunitionsCartridge 122 mm HE with full chargeNb 122 HE full-charge cartridge

Uses the same HE-462/OF-462-equivalent projectile, but STV lists a Ž 9-1 full propelling charge, 690 ± 7% muzzle velocity, and about 15,300 m maximum range.

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

Firing Weapons

STV Group says this reduced-charge Nb 122 HE cartridge is intended for 122 mm 2S1 and D30 howitzers.

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

STV lists the reduced-charge Nb 122 HE cartridge under ammunition for the D-30 howitzer family.

Sources: Cartridge 122 mm HE with reduced 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 lists the reduced-charge Nb 122 HE cartridge under ammunition for 2S1 Gvozdika self-propelled howitzers.

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

Projectile Family

The reduced-charge STV cartridge uses an HE-462 projectile that STV describes as equivalent to the Soviet OF-462 projectile.

Compatible itemItem typeCompatibility evidence
OF-462, 122 mm high-explosive fragmentation shell, MunitionsOF-462122 mm high-explosive fragmentation projectile

STV identifies the cartridge projectile as HE-462 and states that it is equivalent to OF-462, making the OF-462 family the closest cataloged projectile reference.

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

Charge And Compatibility Notes

STV's D-30 and 2S1 ammunition family separates the same Nb 122 HE / HE-462 projectile line into full- and reduced-charge cartridges. The reduced-charge cartridge uses a Ž 10 propelling charge and is published with lower velocity and shorter range than the Ž 9-1 full-charge version.

TopicReduced-charge cartridgeSource-backed context
Compatible gunsD-30 and 2S1 Gvozdika 122 mm howitzersSTV lists the reduced cartridge on both its individual product page and its D-30/2S1 ammunition-family page.
Projectile and chargeHE-462 projectile with Ž 10 reduced propelling chargeThe same STV page describes HE-462 as equivalent to OF-462 and gives separate Fe- and brass-case documentation numbers.
Ballistic split565 ± 5% muzzle velocity and 12,870 m maximum rangeThe linked full-charge cartridge uses Ž 9-1 and is listed at 690 ± 7% and about 15,300 m.
Production contextSTV Technology describes 122 mm shell filling at PoličkaThe production article gives broad 122 mm and Ukraine-related context, but it does not identify this exact reduced-charge cartridge as a delivered battlefield round.

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

Media

Cartridge 122 mm HE with reduced charge Images

Cartridge 122 mm HE with reduced charge, 122 mm separate-loaded HE artillery cartridge, Munitions - view 1
Source: 122 mm OF-462.jpg
Related Weapon Systems
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Sources

Cartridge 122 mm HE with reduced charge - STV GroupPublisher: STV Group | Note: Supports the reduced-charge Nb 122 HE cartridge designation, its separate-loaded construction, 2S1 and D30 compatibility, Czech manufacturer context, and published technical data. | Accessed: 2026-06-29Cartridge 122 mm HE with full charge - STV GroupPublisher: STV Group | Note: Supports the full-charge Nb 122 HE counterpart and its Ž 9-1 propelling charge, velocity, range, and shared D-30/2S1 firing context. | Accessed: 2026-06-29Ammunition 122 mm for cannon D-30 and 2S1 Gvozdika - STV GroupPublisher: STV Group | Note: Supports the D-30 and 2S1 Gvozdika ammunition-family context and the listing of both reduced- and full-charge 122 mm HE cartridges. | Accessed: 2026-06-29STV Technology artillery shell filling linePublisher: STV Technology | Note: Supports broad STV large-caliber ammunition production context, including 122 mm shell filling at Polička and a Ukraine-related production note; it does not identify this exact reduced-charge cartridge as a delivered conflict round. | Accessed: 2026-06-29122 H 38 shell.JPGPublisher: Wikimedia Commons | Note: Supports image provenance for a representative 122 mm shell photograph. | Accessed: 2026-06-29122 mm OF-462.jpgPublisher: Wikimedia Commons | Note: Supports image provenance for a second 122 mm artillery shell image. | Accessed: 2026-06-29