Colt 1855 10-Gauge Revolving Shotgun

Published on September 18, 2025
Duration: 1:10

The 1855 Colt revolving shotgun is a unique 10-gauge firearm featuring a five-shot cylinder and a distinctive rack and pinion lever system for cycling. Its side hammer design and the placement of ratchets on the axis pin are notable mechanical features. However, the design suffered from a significant cylinder gap issue, posing a risk of dangerous chain fires despite attempts to mitigate it.

Quick Summary

The 1855 Colt revolving shotgun is a 10-gauge firearm with a unique rack and pinion lever for cycling and a side hammer design. Its ratchets are on the axis pin, but a critical flaw was the cylinder gap, risking dangerous chain fires.

Chapters

  1. 00:00Introduction: 1855 Colt Revolving Shotgun
  2. 00:06Cycling Mechanism: Rack and Pinion Lever
  3. 00:16Hammer Design: Side Hammer System
  4. 00:23Cylinder & Ratchets: Axis Pin Design
  5. 00:38Safety Issues: Cylinder Gap & Chain Fires

Frequently Asked Questions

What is unique about the Colt 1855 revolving shotgun's cycling mechanism?

The 1855 Colt revolving shotgun features a distinctive rack and pinion lever system. As the lever cycles, it moves backward, providing increased leverage for operation.

How does the Colt 1855's hammer design differ from other revolvers?

The Colt 1855 utilizes a side hammer system. Unlike many revolvers where the hammer is centrally mounted, this design bolts the hammer directly to the side of the firearm's frame.

What safety concern was associated with the Colt 1855 revolving shotgun?

A significant safety issue was the cylinder gap. Sparks from firing could potentially reflect back into the cylinder, igniting adjacent rounds and causing dangerous chain fires.

Where are the ratchets located on the Colt 1855 revolving shotgun?

Unconventionally, the ratchets on the Colt 1855 revolving shotgun are not on the back of the cylinder itself. Instead, they are integrated into the cylinder axis pin.

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