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12"/50 caliber Mark 8 gun
Photo: US Navy Employee · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
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12"/50caliberMark8gun

Naval Guns · United States · 1944
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12"/50caliberMark8gun

12"/50 caliber Mark 8 gun
12"/50 caliber Mark 8 gun Photo: US Navy Employee · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
* Absolute score — assessed within category · no era adjustment
Rate of Fire
40
Range
75
Lethality
85
Accuracy
70
Ammunition Versatility
50
Multi-Role Capability
20
Reliability
80
Automation
30
Technology
60
Cost-Effectiveness
55
Origin United States
ManufacturerWashington Navy Yard
CategoryNaval Guns
EraWorld War II
In service1944–1961
Operators1 countries
Quantity18
Data Quality85%
MASS(Military Archive Scoring System)
59
Naval Guns MASS Rating
4/20
World War II
44/280
All-Time
Naval Guns · 10 axes scored
Rate of Fire
40
Range
75
Lethality
85
Accuracy
70
Ammunition Versatility
50
Multi-Role Capability
20
Reliability
80
Automation
30
Technology
60
Cost-Effectiveness
55
ⓘ Regardless of era, the same scoring system applies to all units in the naval guns category.
01 / Overview
12"/50 caliber Mark 8 gun
Category
Prime contractor
Production
1944–1961
Quantity
18
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
NAVAL GUNS · WORLD WAR II
4
PERFORMANCE/PRICE
87
UNIT COST (2025 USD)
—
59
naval guns category
ⓘ Performance/Price and MASS score are computed across all units in the naval guns category, regardless of era.
02 / Specs & Design
◎General5MOD.5
  • Weapon TypeNaval gun
  • Service Entry Year1944
  • Weight55,300 kg
  • Diameter305 mm
  • In ServiceYes
◈Performance2MOD.2
  • Maximum Range (gun)34.8 km
  • Rate of Fire (gun)2.4
▣Platform2MOD.2
◇Production1MOD.1
  • Total Production18
03 / History
SERVICE LIFESPANStill in Service
  1. 1939First deployment: World War II
  2. 1944Production started
  3. 1961Production ended
82
years in service
17
years in production
18
units produced
1
countries operating
ⓘ The producing country still actively operates it.
04 / 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 →