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5"/40 caliber Mark III gun
Photo: Unknown author · Wikimedia Commons · Public domain
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5"/40caliberMarkIIIgun

Naval Guns · United States · 1895
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5"/40caliberMarkIIIgun

5"/40 caliber Mark III gun
5"/40 caliber Mark III gun Photo: Unknown author · Wikimedia Commons · Public domain
* Absolute score — assessed within category · no era adjustment
Rate of Fire
30
Range
25
Lethality
40
Accuracy
35
Ammunition Versatility
20
Multi-Role Capability
10
Reliability
85
Automation
5
Technology
15
Cost-Effectiveness
70
Origin United States
ManufacturerWashington Navy Yard
CategoryNaval Guns
EraPre-WWI / Industrial Age
In service1895–1923
Operators1 countries
Quantity203
Data Quality86%
MASS(Military Archive Scoring System)
33
Naval Guns MASS Rating
74/131
Pre-WWI / Industrial Age
208/280
All-Time
Naval Guns · 10 axes scored
Rate of Fire
30
Range
25
Lethality
40
Accuracy
35
Ammunition Versatility
20
Multi-Role Capability
10
Reliability
85
Automation
5
Technology
15
Cost-Effectiveness
70
ⓘ Regardless of era, the same scoring system applies to all units in the naval guns category.
01 / Overview
5"/40 caliber Mark III gun
Category
Prime contractor
Production
1895–1923
Quantity
203
Operators
Conflicts
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
NAVAL GUNS · PRE-WWI / INDUSTRIAL AGE
74
PERFORMANCE/PRICE
68
UNIT COST (2025 USD)
—
33
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 TypeNaval gun
  • Service Entry Year1895
  • Weight3,175.2 kg
  • Length5.232 m
  • Diameter127 mm
  • In ServiceYes
◈Guidance & Homing4MOD.4
▣Performance4MOD.4
  • Propulsion Typegunpowder
  • Range7.772 km
  • Maximum Range (gun)14.63 km
  • Rate of Fire (gun)12
◇Warhead3MOD.3
◆Platform4MOD.4
▤Production2MOD.2
  • Total Production203
  • Operators1
⬢Warhead Detail1MOD.1
  • Detonation Mechanism / Fuzeimpact
03 / History
SERVICE LIFESPANRetired
  1. 1895Production started
  2. 1923Production ended
131
years in service
28
years in production
203
units produced
0
countries operating
ⓘ 1 countries retired it.
04 / Conflicts
5"/40 CALIBER MARK III GUN · CONFLICTS SERVED IN0% win·100% loss
Total Conflicts
1
Victories
0
Ongoing
0
Losses
1
ⓘ 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 →