Data Quality84%
MASS(Military Archive Scoring System)
ⓘ Regardless of era, the same scoring system applies to all units in the field guns category.
01 / Overview
BL 12 inch railway gun
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
FIELD GUNS · WORLD WAR I
20
PERFORMANCE/PRICE
30
UNIT COST (2025 USD)
—
ⓘ Performance/Price and MASS score are computed across all units in the field guns category, regardless of era.
02 / Specs & Design
◎General2MOD.2
- Service Entry Year1915
- Carriage TypeRailway Mounting
◈Ordnance4MOD.4
- Calibre304.8 mm
- Barrel Length (calibres)40
- Breech TypeScrew
- Recoil SystemHydro-Spring
▣Performance4MOD.4
- Maximum Range (standard)30 km
- Muzzle Velocity795 m/s
- Elevation0° - 30°
- Traverse1° L & R
◇Ammunition2MOD.2
- Projectile Weight386 kg
- HE RoundYes
◆Dimensions1MOD.1
- Length12.2 m
▤Production2MOD.2
- Total Production4
- Production Start1,906 year
03 / History
SERVICE LIFESPANRetired
- 1915Production started
111
years in service
4
units produced
0
countries operating
ⓘ 1 countries retired it.
05 / MASS Score
FIELD GUNS RANKING Field Guns · World War I
MASS RANKINGSMASS ↗
123FIELD GUNS20WORLD WAR I · FIELD GUNS518UNITED KINGDOM · ALL WEAPONS232PERFORMANCE/PRICE · FIELD GUNS
ⓘ Rankings are within theField Gunscategory.
📖 TERMS ON THIS PAGE4terms
High Explosive (HE) round: an artillery or mortar projectile containing explosive filler designed to inflict damage through blast and fragmentation effects.
Method of transporting artillery by mounting it on a railway flatcar for movement along rail lines.
A breech mechanism in artillery where a cylindrical plug with spiral threads is rotated to open or close the breech.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources