MT-12 100 mm ammunition suite

The MT-12 100 mm ammunition suite groups the source-listed rounds for the T-12 and MT-12 smoothbore anti-tank guns, including guided 3UBK-10 / 9M117 rounds, UBM1 and UBM2 armor-piercing sub-caliber rounds, UBK2 and UBK2M hollow-charge rounds, and UOF3 high-explosive fragmentation ammunition.

MT-12 100 mm ammunition suite, 100 mm fixed ammunition family for T-12 and MT-12 anti-tank guns, Munitions

Image source: MT-12 Ukrainian service image

Firing Weapons

Belspetsvneshtechnika lists this 100 mm ammunition family for the MT-12 and T-12 anti-tank guns.

Firing weapon

Weapon type

Firing evidence

MT-12 Rapira, Towed 100 mm smoothbore anti-tank gun, Artillery

100 mm smoothbore anti-tank gun

The MT-12 entry from Belspetsvneshtechnika lists 3UBK-10 guided rounds, UBM1/UBM2 sub-caliber rounds, UBK2/UBK2M hollow-charge rounds, and UOF3 HE-fragmentation rounds for the 100 mm MT-12/T-12 gun family.

Sources: 100 mm anti-tank gun MT-12 Rapira

Profile

Origin: Soviet Union / Belarus-listed legacy stocks
Built by: Sovietpost-Soviet ordnance industry
Built in: Soviet Unionpost-Soviet states
Type: 100 mm fixed ammunition family for T-12 and MT-12 anti-tank guns
Service note: Cold War 100 mm smoothbore ammunition family still listed for MT-12 service

100 mmammunition anti-tankapfsdsheat he-frag

Specifications

Caliber: 100 mm
Compatible guns: MT-12 (2A29) and T-12 (2A19)
Guided round: 3UBK-10 with 9M117 anti-tank guided missile
APFSDS rounds: UBM1 and UBM2 with ZBM1 and ZBM2 projectiles
HEAT rounds: UBK2 and UBK2M with 3BK3 and 3BK3M projectiles
HE-FRAG round: UOF3 with 3OF15 projectile
Listed ammunition load: 20 rounds: 10 AP sub-caliber, 6 hollow charge, and 4 HE-fragmentation

Service And Conflict Use

Service History

In service: Listed by Belspetsvneshtechnika for 100 mm MT-12 and T-12 guns.

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Sources

100 mm anti-tank gun MT-12 RapiraPublisher: Belspetsvneshtechnika | Note: Supports the MT-12/T-12 ammunition family: 3UBK-10 / 9M117 guided rounds, UBM1 and UBM2 AP sub-caliber rounds, UBK2 and UBK2M hollow-charge rounds, UOF3 HE-fragmentation rounds, and the listed 20-round ammunition set. | Accessed: 2026-06-24 MT-12 optics and ammunition overviewPublisher: Wikipedia | Note: Supports the general MT-12 100 x 910 mmR ammunition context and confirms APFSDS, HEAT, HE, and gun-launched anti-tank missile ammunition categories. | Accessed: 2026-06-24 MT-12 Ukrainian service imagePublisher: Wikimedia Commons | Note: Image provenance and licensing page for the MT-12 photograph used to represent the ammunition's firing weapon. | Accessed: 2026-06-24