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RBL 7 inch Armstrong gun
Photo: not stated. assumed Royal Navy. · Wikimedia Commons · Public domain
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RBL7inchArmstronggun

Naval Guns · United Kingdom · 1861
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RBL7inchArmstronggun

RBL 7 inch Armstrong gun
RBL 7 inch Armstrong gun Photo: not stated. assumed Royal Navy. · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Rate of Fire
30
Range
40
Lethality
50
Accuracy
45
Ammunition Versatility
35
Multi-Role Capability
20
Reliability
60
Automation
5
Technology
30
Cost-Effectiveness
70
Origin United Kingdom
CategoryNaval Guns
EraPre-WWI / Industrial Age
In service1861–1864
Operators1 countries
Quantity959
Data Quality85%
MASS(Military Archive Scoring System)
38
Naval Guns MASS Rating
53/131
Pre-WWI / Industrial Age
175/280
All-Time
Naval Guns · 10 axes scored
Rate of Fire
30
Range
40
Lethality
50
Accuracy
45
Ammunition Versatility
35
Multi-Role Capability
20
Reliability
60
Automation
5
Technology
30
Cost-Effectiveness
70
ⓘ Regardless of era, the same scoring system applies to all units in the naval guns category.
01 / Overview
RBL 7 inch Armstrong gun
Category
Production
1861–1864
Quantity
959
Operators
Conflicts
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
NAVAL GUNS · PRE-WWI / INDUSTRIAL AGE
53
PERFORMANCE/PRICE
78
UNIT COST (2025 USD)
—
38
naval guns category
ⓘ Performance/Price and MASS score are computed across all units in the naval guns category, regardless of era.
02 / Specs & Design
◎General6MOD.6
  • Weapon Typerifled breechloader
  • Service Entry Year1861
  • Weight8,200 kg
  • Length3.03 m
  • Diameter178 mm
  • In ServiceYes
◈Guidance & Homing4MOD.4
▣Performance3MOD.3
  • Propulsion Typegunpowder
  • Range3.2 km
  • Maximum Range (gun)3.2 km
◇Warhead3MOD.3
◆Platform4MOD.4
▤Production2MOD.2
  • Total Production959
  • Unit Cost425 USD
⬢Warhead Detail2MOD.2
  • Detonation Mechanism / Fuzepercussion
  • Explosive Filler Typetallow and linseed oil
03 / History
SERVICE LIFESPANRetired
  1. 1861Production started
  2. 1863First deployment: Bombardment of Kagoshima
  3. 1864Production ended
165
years in service
3
years in production
959
units produced
0
countries operating
ⓘ 1 countries retired it.
04 / Conflicts
RBL 7 INCH ARMSTRONG GUN · CONFLICTS SERVED IN0% win
Total Conflicts
1
Victories
0
Ongoing
0
Losses
0
ⓘ Shown only from conflicts recorded in our database.
05 / Operators
Operator Countries1country
📖 TERMS ON THIS PAGE2terms
Surface ship from which a torpedo is launched, typically a destroyer, cruiser, or dedicated torpedo boat.
Ship-launched: a torpedo designed to be deployed from surface warships using onboard launch tubes or deck-mounted launchers.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Naval Guns entry →