First Pattern 1865 Allin Conversion - Trapdoor Springfield

Published on November 30, 2015
Duration: 10:01

This review details the First Pattern 1865 Allin Conversion, the initial Trapdoor Springfield variant. It highlights the post-Civil War need for breech-loading conversions of surplus .58 caliber muzzleloaders. The design by Erskine Allin involved cutting the barrel to insert a breech block, initially using a .58 rimfire cartridge before later models adopted .50 and .45 caliber rounds.

Quick Summary

The 1865 Allin Conversion was the first Trapdoor Springfield rifle, created to convert surplus .58 caliber Civil War muzzleloaders into breech-loaders. Designed by Erskine Allin, it featured a hinged 'trapdoor' breech block and initially used a .58 rimfire cartridge.

Chapters

  1. 00:00Introduction: 1865 Allin Conversion
  2. 00:33Historical Context: Post-Civil War Need
  3. 02:07Erskine Allin's Design and Production
  4. 03:43Mechanical Operation: The Trapdoor
  5. 05:36Caliber and Cartridge Evolution
  6. 06:13Extractor and Sights Details
  7. 08:05Locking Mechanism and Safety

Frequently Asked Questions

What was the purpose of the 1865 Allin Conversion?

The 1865 Allin Conversion was designed to update surplus .58 caliber muzzle-loading rifles used during the Civil War into modern breech-loading cartridge rifles, making them more efficient for the US military.

Who designed the Allin Conversion system?

The Allin Conversion system was developed by Erskine Allin, who served as the master armorer at the Springfield Armory. His innovative design allowed for the conversion of existing firearms.

What caliber cartridge did the first 1865 Allin Conversion use?

The initial 1865 Allin Conversion retained the original .58 caliber barrel but was adapted to fire a .58 rimfire cartridge. Later versions of the Trapdoor Springfield would transition to different calibers like .50-70 and .45-70.

How did the 1865 Allin Conversion operate?

It featured a 'trapdoor' breech block that was hinged and opened upwards, allowing a single cartridge to be loaded directly into the barrel. The hammer was modified from the original musket's hammer.

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