German Drilling Maintenance: Anvil 0132

Published on November 24, 2023
Duration: 23:13

This video details the complex maintenance and repair of a German Drilling firearm. Mark Novak successfully diagnoses and fixes a frozen firing pin issue, identifies the rifle caliber as 9.3x72R using a Cerrosafe cast, and performs a full disassembly and cleaning. The firearm is restored to perfect working order across all three barrels.

Quick Summary

The rifle firing pin in the German Drilling was stuck due to an incorrect spring and old grease, not breakage. It was freed by careful cleaning and re-springing. The rifle caliber was identified as 9.3x72R using a Cerrosafe chamber cast.

Chapters

  1. 00:00Introduction to the German Drilling
  2. 00:47Mechanism Inspection and Firing Pin Issues
  3. 02:17Disassembly of Side Locks
  4. 03:31Removing Trigger Guard and Tang
  5. 05:05Internal Lock Mechanism 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: 9.3x72R
  10. 19:13Range Testing and Conclusion

Frequently Asked Questions

How was the rifle caliber of the German Drilling identified?

The rifle caliber was identified as 9.3x72R by performing a chamber cast using Cerrosafe, a low-melt bismuth alloy. This cast provided an exact replica of the chamber dimensions, allowing for precise measurement and identification.

What was the cause of the frozen firing pin in the German Drilling?

The rifle firing pin was found to be stuck due to an incorrect or damaged spring and accumulated 'varnish' from old grease. It was not broken but simply dirty and improperly sprung, preventing free movement.

What specialized tools are needed for German Drilling maintenance?

Specialized tools include perfectly fitting screwdriver bits for engraved screws, Kroil penetrating oil for loosening parts, and Cerrosafe for chamber casting to identify the caliber. Precision is key throughout the process.

What is a German Drilling firearm?

A German Drilling is a firearm with three barrels, typically featuring two 16-gauge shotgun barrels positioned over a single rifle barrel. They are known for their complexity and are often collector's items.

More Gunsmithing & DIY Videos You Might Like

More from Mark Novak

View all →