LATEST Ancient Prototypes of Proxy Warfare: The Economic and Logistical Burden of Roman and Persian Proxy Networks among Arab Tribes and Caucasian Powers
SEARCH
DB ONLINE
EN ▾
RBL 20 pounder Armstrong gun
Photo: Artist not identified. · Wikimedia Commons · Public domain
REC // INTEL FEED

RBL20pounderArmstronggun

Field Guns · United Kingdom · 1859
ADD TO COMPARE

RBL20pounderArmstronggun

RBL 20 pounder Armstrong gun
RBL 20 pounder Armstrong gun Photo: Artist not identified. · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Range
40
Firepower
30
Accuracy
50
Rate of Fire
20
Mobility
30
Muzzle Velocity
20
Direct-Fire Capability
40
Reliability
60
Versatility
30
Cost-Effectiveness
40
Origin United Kingdom
CategoryField Guns
EraPre-WWI / Industrial Age
In service1859
Operators1 countries
Quantity412
Data Quality84%
MASS(Military Archive Scoring System)
36
Field Guns MASS Rating
60/77
Pre-WWI / Industrial Age
202/240
All-Time
Field Guns · 10 axes scored
Range
40
Firepower
30
Accuracy
50
Rate of Fire
20
Mobility
30
Muzzle Velocity
20
Direct-Fire Capability
40
Reliability
60
Versatility
30
Cost-Effectiveness
40
ⓘ Regardless of era, the same scoring system applies to all units in the field guns category.
01 / Overview
RBL 20 pounder Armstrong gun
Category
Production
1859–
Quantity
412
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
FIELD GUNS · PRE-WWI / INDUSTRIAL AGE
60
PERFORMANCE/PRICE
50
UNIT COST (2025 USD)
—
36
field guns category
ⓘ Performance/Price and MASS score are computed across all units in the field guns category, regardless of era.
02 / Specs & Design
◎General4MOD.4
  • Service Entry Year1859
  • Combat Weight813 kg
  • Carriage TypeWheeled / Towed
  • In ServiceYes
◈Ordnance6MOD.6
▣Performance4MOD.4
  • Maximum Range (standard)3.09 km
  • Muzzle Velocity344 m/s
  • Elevation-5 to +15 degrees
  • Traverse6 degrees
◇Ammunition8MOD.8
▤Mobility5MOD.5
⬢Dimensions1MOD.1
  • Length2.13 m
▲Production2MOD.2
  • Total Production412
  • Production Start1,859 year
◎Self-Propelled Chassis1MOD.1
03 / History
SERVICE LIFESPANRetired
  1. 1859Production started
167
years in service
412
units produced
0
countries operating
ⓘ 1 countries retired it.
04 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE3terms
High Explosive (HE) round: an artillery or mortar projectile containing explosive filler designed to inflict damage through blast and fragmentation effects.
A breech mechanism in artillery where a solid block slides horizontally to open and close the breech for loading.
Artillery classification distinguishing self-propelled wheeled vehicles from weapons towed by external means.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Field Guns entry →