German Drilling Maintenance: Anvil 0132

Published on November 24, 2023
Duration: 23:13

This guide details the comprehensive maintenance and repair of a German Drilling firearm, as demonstrated by gunsmith Mark Novak. It covers the disassembly of complex lock mechanisms, identification and resolution of firing pin issues, and the use of specialized techniques like chamber casting with Cerrosafe to determine the rifle caliber (identified as 9.3x72R). The process emphasizes meticulous cleaning and minor adjustments for successful restoration of function.

Quick Summary

Expert gunsmith Mark Novak demonstrates the detailed maintenance and repair of a German Drilling, a three-barrel firearm. The process includes careful disassembly of complex lock mechanisms, diagnosing and fixing a stuck rifle firing pin, and using Cerrosafe for chamber casting to identify the 9.3x72R rifle caliber, culminating in successful range testing.

Chapters

  1. 00:00Introduction to the German Drilling
  2. 00:47Mechanism Inspection and Issues
  3. 02:17Disassembly of Side Locks
  4. 03:31Removing the Trigger Guard and Tang
  5. 05:05Internal Lock Extraction
  6. 07:47Identifying the Firing Pin Failure
  7. 09:13Firing Pin Removal and Cleaning
  8. 13:38Chamber Casting with Cerrosafe
  9. 16:50Caliber Identification
  10. 19:13Range Testing and Conclusion

Frequently Asked Questions

What are the key components of a German Drilling firearm?

A German Drilling is a three-barrel firearm, typically featuring two 16-gauge shotgun barrels and one rifle barrel. It is hammer-fired and has a break-action mechanism, often with engraved side locks and specialized trigger systems like a set trigger for the rifle barrel.

How can you identify the caliber of an unknown rifle barrel on an antique firearm like a German Drilling?

A reliable method is chamber casting. This involves pouring a low-melt alloy, such as Cerrosafe, into the chamber. Once cooled, the cast provides an exact replica of the chamber's dimensions, allowing for precise measurement and caliber identification.

What are common issues encountered during German Drilling maintenance?

Common issues include a malfunctioning firing pin mechanism, often caused by accumulated old grease, varnish, or incorrect springs, leading to the pin becoming stuck. Disassembly requires careful attention to detail due to tight tolerances and engraved screws.

What tools are essential for maintaining a German Drilling?

Essential tools include a set of high-quality screwdrivers with perfectly fitting bits, penetrating oil like Kroil to loosen stuck parts, a brass punch for delicate tapping, and materials for chamber casting such as Cerrosafe.

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