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coach gun
Photo: The original uploader was Commander Zulu at English Wikipedia. · Wikimedia Commons · Attribution
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coachgun

Combat Shotguns · United States · 1858
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coachgun

coach gun
coach gun Photo: The original uploader was Commander Zulu at English Wikipedia. · Wikimedia Commons · Attribution
* Absolute score — assessed within category · no era adjustment
Close-Range Lethality
30
Ammunition Versatility
20
Capacity
10
Reliability
90
Handling
50
Breaching Capability
5
Pattern Control
15
Ergonomics
25
Technology
5
Cost-Effectiveness
95
Origin United States
CategoryCombat Shotguns
EraPre-WWI / Industrial Age
In service1858
Operators38 countries
Data Quality88%
MASS(Military Archive Scoring System)
34
Combat Shotguns MASS Rating
7/7
Pre-WWI / Industrial Age
106/107
All-Time
Combat Shotguns · 10 axes scored
Close-Range Lethality
30
Ammunition Versatility
20
Capacity
10
Reliability
90
Handling
50
Breaching Capability
5
Pattern Control
15
Ergonomics
25
Technology
5
Cost-Effectiveness
95
ⓘ Regardless of era, the same scoring system applies to all units in the combat shotguns category.
01 / Overview
coach gun
Production
1858–
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
COMBAT SHOTGUNS · PRE-WWI / INDUSTRIAL AGE
7
PERFORMANCE/PRICE
87
UNIT COST (2025 USD)
—
34
combat shotguns category
ⓘ Performance/Price and MASS score are computed across all units in the combat shotguns category, regardless of era.
02 / Specs & Design
◎General2MOD.2
  • First Production Year1858
  • Notable UsersDoc Holliday, Wyatt Earp, various law enforcement agencies
◈Cartridge & Calibre3MOD.3
  • Cartridge12 gauge
  • Calibre18.5 mm
  • Calibre Class12 gauge (0.729 in)
▣Operation3MOD.3
◇Ballistics4MOD.4
  • Muzzle Velocity400 m/s
  • Effective Range (point)50 m
  • Effective Range (area)50 m
  • Maximum Range200 m
◆Barrel & Sights3MOD.3
▤Production & Cost1MOD.1
  • Production Start1858
03 / History
SERVICE LIFESPANRetired
  1. 1858Production started
168
years in service
0
countries operating
ⓘ 38 countries retired it.
04 / Operators
📖 TERMS ON THIS PAGE3terms
Firearm mechanism where the barrel and breech pivot open for loading/unloading, typically via a hinge at the frame.
Adjustable metal aiming devices on firearms, consisting of a front post and rear notch, used without magnification.
A firearm feed system where only one round is chambered and fired per cycle, requiring manual reloading.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Combat Shotguns entry →