Munitions

M106 203 mm high-explosive fragmentation projectile

Also known as
  • M106
  • 8-inch HE projectile M106
  • M106 203 mm artillery shell
  • M106 HE-frag projectile

The M106 is a U.S. 8-inch, or roughly 203 mm, high-explosive fragmentation projectile built for American heavy artillery such as the M110. Open munition references describe a nose-fuzed, boat-tailed steel shell with TNT or Composition B filling, while Ukrainian and defense-reporting sources document M106 projectiles being adapted to Ukrainian 2S7 Pion guns during the 2014 Russia-Ukraine War as Soviet-pattern 203 mm stocks became scarce.

M106 203 mm high-explosive fragmentation projectile, 203 mm high-explosive fragmentation projectile, Munitions
Image source: Ukrainian Pion guns now fire US-made projectiles

Role in Conflicts

2014 Russia-Ukraine War
Fire Support

Ukrainian reporting in June 2023 identified U.S.-made 203 mm M106 projectiles received for 2S7 Pion guns, with follow-on reporting and imagery showing Ukrainian crews loading M106 ammunition in the 2014 Russia-Ukraine War.

Role details
Profile / Specs

Profile

Origin
United States
Type
203 mm high-explosive fragmentation projectile
Service note
World War II-era U.S. 8-inch artillery ammunition later appearing in wartime Ukrainian 203 mm stocks
Produced
World War II era and Cold War production

Specifications

Caliber
203 mm / 8 inch
Projectile class
High-explosive fragmentation projectile
Weight
About 90.7 kg / 200 lb
Filler
TNT or Composition B
Construction
Hollow steel body with a boat-tailed base, ogival nose profile, rotating band, and nose fuze cavity
Stabilization
Spin-stabilized
Original firing context
U.S. 203.2 mm artillery such as the M110 self-propelled howitzer
Documented wartime adaptation
Reported with Ukrainian 2S7 Pion 203 mm self-propelled guns
Firing Weapons

The M106 is a U.S. 8-inch projectile, but wartime reporting also documents Ukrainian use with Soviet-origin 203 mm 2S7 Pion guns.

Firing weaponWeapon typeFiring evidence
2S7 Pion, 203 mm tracked self-propelled gun, Artillery2S7 Pion203 mm self-propelled gun

Ukrainska Pravda and Army Recognition identify M106 projectiles in Ukrainian 2S7 Pion service, with Army Recognition showing a Ukrainian crew loading the round into the 2S7's 203 mm gun.

Sources: Ukrainian Pion guns now fire US-made projectiles, Ukrainian Forces Use 203mm US Ammunition with Russian 2S7 Self-Propelled Howitzer

Compatibility caution

The record documents this specific 203 mm artillery adaptation; it should not be read as a general statement that U.S. and Soviet/Russian artillery ammunition are interchangeable.

Sources: Ukrainian Forces Use 203mm US Ammunition with Russian 2S7 Self-Propelled Howitzer

Projectile And Firing Context

The M106 page is useful because it links a U.S. 8-inch projectile to a wartime Ukrainian workaround for 203 mm heavy artillery. The evidence supports the exact M106-to-2S7 context, while leaving broader compatibility claims narrow.

TopicSource-backed detailReader caution
Projectile identityMETIS identifies M106 as a U.S. 8-inch HE-fragmentation projectile with a boat-tailed steel body and nose fuze.The source describes the projectile, not a complete order of battle for all users.
Original U.S. contextUkrainska Pravda describes the M106 as an HE projectile associated with the U.S. M110 203.2 mm self-propelled howitzer.This explains the U.S. 203 mm caliber lineage, not Ukrainian manufacture.
Ukraine adaptationUkrainska Pravda and Army Recognition identify M106 rounds in Ukrainian 2S7 Pion service during the 2014 Russia-Ukraine War.The available open sources document Ukrainian use; they do not establish how many shells were supplied or how widely they were issued.

Source labels used here: M106 (US 8" HE Projectile); Ukrainian Pion guns now fire US-made projectiles; Ukrainian Forces Use 203mm US Ammunition with Russian 2S7 Self-Propelled Howitzer.

Timeline

M106 203 mm high-explosive fragmentation projectile Key Events

  1. U.S. aid package context

    Ukrainian reporting connected the M106 shells to a June 2023 U.S. security-assistance package as Ukraine sought more 203 mm ammunition for Pion guns.

    Sources: Ukrainian Pion guns now fire US-made projectiles

  2. M106 projectiles reported with Ukrainian Pions

    Ukrainska Pravda, citing Militarnyi and a 43rd Brigade-linked account, reported that Ukrainian gunners had received U.S.-made 203 mm M106 projectiles for 2S7 Pion guns.

    Sources: Ukrainian Pion guns now fire US-made projectiles

  3. Reloading imagery published

    Army Recognition published images attributed to Ukraine's defense ministry showing a Ukrainian 2S7 Pion and U.S. M106 203 mm ammunition, including a reload scene.

    Sources: Ukrainian Forces Use 203mm US Ammunition with Russian 2S7 Self-Propelled Howitzer

Media

M106 203 mm high-explosive fragmentation projectile Images

M106 203 mm high-explosive fragmentation projectile, 203 mm high-explosive fragmentation projectile, Munitions - view 1
Source: Ukrainian Pion guns now fire US-made projectiles
M106 203 mm high-explosive fragmentation projectile, 203 mm high-explosive fragmentation projectile, Munitions - view 2
Source: Ukrainian Pion guns now fire US-made projectiles
Related Weapon Systems
M107 155 mm high-explosive projectile, 155 mm high-explosive projectile, ArtilleryArtilleryM107 155 mm high-explosive projectile155 mm high-explosive projectileThe M107 is a conventional 155 mm high-explosive projectile with a forged-steel body, TNT or Composition B fill, and deep- or normal-cavity variants for different fuze fits. U.S. Army ammunition records list it as an operations-and-sustainment item, Modern War Institute reporting places the M107 family in Ukraine's 155 mm ammunition mix, and U.S. emergency-sale notices document M107 deliveries to Israel during the 2023 Israel-Hamas War.
203 mm shells for 2A44 howitzer, 203 mm separate-loading artillery ammunition family, MunitionsMunitions203 mm shells for 2A44 howitzer203 mm separate-loading artillery ammunition familyThe 203 mm shells for the 2A44 howitzer are the Soviet separate-loading ammunition family for 2S7 Pion and 2S7M Malka heavy guns. Public references distinguish standard 3OF43 high-explosive fragmentation projectiles, 3OF44 rocket-assisted projectiles, 3O14 cluster shells, concrete-piercing and special-shell designs, plus current Russian OF43/OF44 use and Ukrainian 203 mm ammunition use in the Russia-Ukraine War.
M549A1 rocket-assisted projectile, 155 mm high-explosive rocket-assisted projectile, MunitionsMunitionsM549A1 rocket-assisted projectile155 mm high-explosive rocket-assisted projectileThe M549A1 is a U.S. 155 mm high-explosive rocket-assisted projectile and the TNT-filled follow-on to the earlier Composition-B-filled M549. Army references describe it as a two-piece round with a high-fragmentation steel warhead and integral rocket motor, built to extend howitzer range to about 30 km and later treated as a legacy munition for replacement by XM1113. Conflict reporting also places M549A1 RAP in Ukrainian Bohdana howitzer combat use during the 2014 Russia-Ukraine War.

Sources

M106 (US 8" HE Projectile)Publisher: METIS - Fenix Insight | Note: Supports the M106's U.S. origin, 8-inch / 203 mm HE-fragmentation identity, boat-tailed steel construction, nose-fuzed layout, and general technical description. | Accessed: 2026-06-29Army ammunition production during the Cold War, 1946-1989Publisher: U.S. Army | Note: Supports U.S. Hoffman Machinery Corporation production of 8-inch M106 projectiles at the Scranton plant and the historical U.S. industrial manufacturing context. | Accessed: 2026-06-29Ukrainian Pion guns now fire US-made projectilesPublisher: Ukrainska Pravda | Note: Supports 2014 Russia-Ukraine War direct conflict use by reporting that Ukrainian gunners received U.S.-made 203 mm M106 projectiles for 2S7 Pion guns, citing Militarnyi and a 43rd Brigade-linked account. Also supports the June 2023 image provenance caveat. | Accessed: 2026-06-29Ukrainian Forces Use 203mm US Ammunition with Russian 2S7 Self-Propelled HowitzerPublisher: Army Recognition | Note: Supports 2014 Russia-Ukraine War direct conflict use by documenting Ukrainian 2S7 Pion crews using U.S.-made M106 ammunition, and supports the article images attributed to Ukraine's defense ministry that show the shell and reloading context. | Accessed: 2026-06-29