{
  "id": "2s3m1",
  "name": "2S3M1",
  "aliases": [],
  "domain": "land",
  "country": "RUS",
  "category": "152mm self-propelled howitzer",
  "status": null,
  "fielded": 1971,
  "operators": [
    "GEO",
    "RUS"
  ],
  "prolif_count": 2,
  "summary": "The 2S3M1 Russian 152mm Self-Propelled Howitzer (SPH) is Equipped with command data acquisition and display equipment, and with a new SP-538 sight. OF-38 Krasnopol laser-guided rocket-assisted projectiles were added to standard ammunition.",
  "specs": [
    {
      "k": "",
      "label": "Manufacturer",
      "section": "system",
      "v": "Uraltransmash",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "crew",
      "v": 4,
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Chassis",
      "section": "mobility",
      "v": "Object 123 tracked chassis",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Displacement time",
      "section": "system",
      "v": "3 min",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Emplacement time",
      "section": "system",
      "v": "3 min",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "width_m",
      "v": 3.25,
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "height_m",
      "v": 3.05,
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "combat_weight_t",
      "v": 27.8,
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "engine_name",
      "v": "V-59",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "engine_hp",
      "v": 520,
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Transmission",
      "section": "mobility",
      "v": "Mechanical two-gear transmission",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "road_range_km",
      "v": 500,
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "speed_road_kmh",
      "v": 60,
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Fording depth",
      "section": "mobility",
      "v": "1 m",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Suspension",
      "section": "mobility",
      "v": "Torsion bar",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Loader",
      "section": "armament",
      "v": "semi-automatic",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Rate of fire (max)",
      "section": "armament",
      "v": "3-4 rds/min",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Rate of fire (sustained)",
      "section": "armament",
      "v": "1 rds/min",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Max elevation",
      "section": "armament",
      "v": "+60 deg",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Min elevation",
      "section": "armament",
      "v": "-4 deg",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Computerized FCS",
      "section": "firecontrol",
      "v": "Yes, automatic Fire Display",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Thermal Sight Vehicle Commander",
      "section": "firecontrol",
      "v": "Yes, PG-4 sight and IP-5 sight",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Thermal Sight Gunner",
      "section": "firecontrol",
      "v": "Yes, OP5-38 gunner's telescope",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Hull Armor",
      "section": "protection",
      "v": "15 mm",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Turret Armor",
      "section": "protection",
      "v": "20 mm",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "Applique Armor",
      "section": "protection",
      "v": "Available",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "",
      "label": "NBC Protection",
      "section": "protection",
      "v": "Yes, Automatic CBRN defense system with filtration unit",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "main_armament",
      "v": "152.4mm D-22 howitzer L/27",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "armament",
      "label": "Secondary armament",
      "v": "1 x 7.62mm PK (Kalashnikov's Machine Gun) General-Purpose Machine Gun",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium"
    },
    {
      "k": "range_max_km",
      "v": 23.9,
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium",
      "label": "Maximum firing range",
      "note": "Longest-range ammunition listed"
    }
  ],
  "payloads": [
    {
      "name": "OF-540 HE-Frag",
      "role": "152 mm ammunition",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium",
      "caps": {
        "Muzzle velocity": "655 m/s",
        "Projectile weight": "43.56 kg",
        "Warhead": "7.76 kg",
        "Fuze": "RGM-2 fuze"
      },
      "range_km": 20.6,
      "qty": "40 Total, any combination of Russian 152mm Projectiles"
    },
    {
      "name": "OF-25 HE-Frag",
      "role": "152 mm ammunition",
      "src": [
        "weg-2s3m1"
      ],
      "conf": "medium",
      "caps": {
        "Projectile weight": "43.56 kg"
      },
      "range_km": 23.9,
      "qty": "40 Total, any combination of Russian 152mm Projectiles"
    }
  ],
  "variants": [
    {
      "name": "2S3 (SO-152)",
      "text": "Basic variant, developed in 1968. Produced in 1970–1975. Two modifications used D-11 and D-11M howitzers.",
      "src": [
        "weg-2s3m1"
      ]
    },
    {
      "name": "2S3M (SO-152M)",
      "text": "Equipped with a mechanized drum-type stowage for 12 rounds, the amount of hatches in rear armored plates of the hull and the turret was reduced, the configuration of those hatches was changed, antenna of R-123 radio set ",
      "src": [
        "weg-2s3m1"
      ]
    },
    {
      "name": "2S3M1 (SO-152M1)",
      "text": "Equipped with a command data acquisition and display equipment, and with a new SP-538 sight. OF-38 Krasnopol laser-guided rocket-assisted projectiles were added to standard ammunition. Produced in 1987–1993. All 2S3s and",
      "src": [
        "weg-2s3m1"
      ]
    },
    {
      "name": "2S3M2 (SO-152M2)",
      "text": "Modernized variant equipped with an automatic fire control system, a satellite navigational system, and smoke grenade launchers. Developed in 2000.",
      "src": [
        "weg-2s3m1"
      ]
    },
    {
      "name": "2S3M2-155",
      "text": "An export-oriented variant of 2S3M2 equipped with a new 155 mm M-385 howitzer. Developed in 2000.",
      "src": [
        "weg-2s3m1"
      ]
    },
    {
      "name": "2S3M3",
      "text": "An experimental variant of 2S3M2 equipped with a further improved fire control system and a modernized howitzer 2A33M that can fire ordnance of a more powerful 2A65 howitzer that equips the 2S19.",
      "src": [
        "weg-2s3m1"
      ]
    }
  ],
  "art": "sph",
  "image": null,
  "verified": null,
  "changelog": [
    {
      "date": "2026-10-10",
      "change": "Entry created from the Worldwide Equipment Guide (ODIN), bulk import"
    }
  ],
  "url": "https://www.defensepedia.com/systems/2s3m1.html",
  "sources": {
    "weg-2s3m1": {
      "title": "2S3M1 Russian 152mm Self-Propelled Howitzer (SPH)",
      "publisher": "U.S. Army TRADOC G-2 Worldwide Equipment Guide (ODIN)",
      "url": "https://odin.t2com.army.mil/WEG/Asset/2S3M1_Russian_152mm_Self-Propelled_Howitzer",
      "published": "2026-03-20",
      "tier": 1,
      "checked": "2026-10-10"
    }
  }
}