Removing a stuck case with a grease gun

Published on April 30, 2019
Duration: 33:27

This guide details a successful method for removing a stuck cartridge case from a firearm barrel using hydraulic pressure generated by a high-pressure grease gun. The technique, demonstrated by Johnny's Reloading Bench, involves a custom adapter and motor oil to hydraulically force the case out. The video highlights the importance of proper tools and high pressure, showcasing a successful extraction that saved a valuable Krieger barrel.

Quick Summary

Remove a stuck cartridge case using a high-pressure grease gun (10,000+ PSI) and hydraulic fluid. A custom muzzle adapter with a Zerk fitting is attached, the barrel is filled with oil, and pressure is applied to hydraulically eject the case. This method can save barrels that resist conventional removal techniques.

Chapters

  1. 00:00The Stuck Case Problem
  2. 01:34The Grease Gun Strategy
  3. 03:46Equipment and Preparation
  4. 08:56Initial Extraction Attempts
  5. 11:16High-Pressure Success
  6. 15:48Post-Removal Inspection
  7. 20:45Range Testing and Accuracy Verification

Frequently Asked Questions

How can I remove a stuck cartridge case from a rifle barrel?

A highly effective method for removing a stuck case involves using a high-pressure grease gun (rated for 10,000 PSI or more) with a custom-machined adapter that threads onto the muzzle. The barrel is filled with hydraulic fluid like 5W-30 oil, and pressure is applied via the grease gun to hydraulically eject the case.

What tools are needed for hydraulic case extraction?

Essential tools include a custom-machined barrel adapter with a Zerk fitting, a high-pressure grease gun (e.g., Lock-n-Load MegaBoost), hydraulic fluid (like 5W-30 motor oil), a syringe for filling, and potentially a clamp-on gas block to seal the gas port. A borescope is useful for post-extraction inspection.

Can a stuck case damage a firearm barrel?

While a stuck case can cause significant pressure issues, a successful hydraulic extraction, as demonstrated with a Krieger barrel, can often remove the case with only minor cosmetic marks in the throat area, leaving the rifling and crown intact and the barrel functional.

What is the maximum pressure a grease gun can generate for extraction?

For effective hydraulic case extraction, a high-pressure grease gun capable of generating at least 10,000 PSI is recommended. Standard grease guns may not provide sufficient pressure to overcome the friction and force holding a severely stuck case.

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