Clips: Savage's "Locked" Blowback System

Published on December 29, 2021
Duration: 4:25

This video examines the unique 'locked' blowback system of the Savage 1907 pocket pistol, as patented by Albert Hamilton Cyril. The system relies on the barrel's tendency to rotate due to rifling friction to momentarily lock the breech. However, the presenter argues that due to the reliance on friction and lack of dwell time, it functions more as a delayed blowback system.

Quick Summary

The Savage 1907 pocket pistol features a unique 'locked' blowback system patented by Albert Hamilton Cyril. This mechanism uses the barrel's rotation, induced by rifling friction with the bullet, to momentarily lock the breech. However, due to reliance on friction and lack of dwell time, it is often considered a form of delayed blowback.

Chapters

  1. 00:03Introduction to Clips
  2. 00:07Revisiting the Savage 1907 Pocket Pistol
  3. 00:17Albert Hamilton Cyril's Patent and Principle
  4. 00:34The Physics of Barrel Rotation
  5. 00:56Mechanism Detail
  6. 01:13Observing Barrel Twist
  7. 01:37Gun Disassembly and Lugs
  8. 02:01Slide Groove Interaction
  9. 02:24The Debate: Locked vs. Delayed Blowback
  10. 03:12Challenges in Proving the System
  11. 03:39US Trials and Conclusion
  12. 04:04Viewer Opinion Encouraged

Frequently Asked Questions

What is the unique breech system used in the Savage 1907 pocket pistol?

The Savage 1907 employs a 'locked' blowback system patented by Albert Hamilton Cyril. It utilizes the barrel's tendency to rotate due to rifling friction with the bullet to momentarily lock the breech bolt against opening.

How does the Savage 1907's barrel rotation work to lock the breech?

As a bullet travels down the rifled barrel, it forces the barrel to spin. The Savage 1907's design allows for slight barrel rotation, which engages a lug system to hold the slide in place until the bullet has exited.

Is the Savage 1907's system considered a true locked breech or delayed blowback?

The presenter argues it functions more like a delayed blowback. The locking relies on friction, which is debatable, and there's no dwell time after the bullet leaves the barrel, negating benefits of true locked systems.

What are the key mechanical components of the Savage 1907's breech system?

The system involves a barrel with an upper lug that engages a channel in the slide, and a lower lug that moves within a supporting channel in the frame. This allows the barrel to rotate independently of the slide.

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