Is the Serbu RN-50 Safe? Mark Serbu Interview

Published on August 17, 2023
Duration: 17:29

This interview with Mark Serbu addresses the safety of the RN-50 firearm, particularly in light of an incident involving Scott from Kentucky Ballistics. The consensus points to a misloaded cartridge, likely using pistol powder in a 50 BMG case, leading to extreme over-pressurization (estimated at 190,000 PSI). Serbu explains that 50 BMG's normal pressure is around 55,000 PSI and discusses the difference in energy release between various propellants and explosives, emphasizing that impact loading from rapid-burn powders can be destructive.

Quick Summary

The consensus on the Serbu RN-50 malfunction points to a misloaded cartridge, likely using pistol powder in a 50 BMG case, creating extreme over-pressurization (estimated 190,000 PSI). Normal 50 BMG pressure is around 55,000 PSI. Fast-burning powders can cause dangerous impact loading, making ammunition source vetting crucial.

Chapters

  1. 00:00Introduction: Serbu RN-50 Safety Discussion
  2. 00:15The RN-50 Incident with Scott from Kentucky Ballistics
  3. 01:15Is the RN-50 Safe? Mark Serbu's Perspective
  4. 03:05The Bottom Line: What Happened with the RN-50
  5. 03:14Pistol Powder in a Rifle Case: The Likely Cause
  6. 04:07Understanding 50 BMG Pressure Standards
  7. 05:07Designing for Safety Factors in Firearms
  8. 06:09Energy Density vs. Rate of Release: Gunpowder vs. Explosives
  9. 07:17The Destructive Power of Impact Loading
  10. 09:22Debunking High Explosive Rumors for the RN-50 Incident
  11. 10:47Lessons Learned: Purchasing Exotic Ammunition
  12. 11:06Counterfeit Ammunition Risks
  13. 12:09Intentional Malintent vs. Idiocy in Ammunition Loading
  14. 14:03RN-50 Production and Demand Post-Incident
  15. 16:18Redesigning for Safety: Challenges and Variables
  16. 16:52Pressure Transducer Limitations

Frequently Asked Questions

What is the general consensus on why the Serbu RN-50 malfunctioned?

The prevailing consensus is that the Serbu RN-50 malfunction was caused by a misloaded cartridge, likely due to the use of pistol powder in a 50 BMG case. This combination can create extreme over-pressurization, estimated at 190,000 PSI, far exceeding the normal 55,000 PSI for 50 BMG.

What is the normal pressure for 50 BMG ammunition?

The normal operating pressure for 50 BMG ammunition is approximately 55,000 PSI. While SAAMI does not have a standard for 50 BMG, European CIP standards do exist. This is significantly lower than the pressures generated in the incident discussed.

How does the burn rate of powder affect firearm safety?

The burn rate of powder is critical. Fast-burning pistol powders, designed for short barrels, can cause dangerous pressure spikes and impact loading when used in larger rifle cases like 50 BMG. This rapid energy release is more destructive than slower-burning rifle powders.

Is the Serbu RN-50 still being sold after the incident?

Yes, Mark Serbu confirms that the RN-50 is still in production and has a significant waiting list, even after the incident. This indicates continued demand for the firearm, with production numbers increasing substantially since the event.

What are the risks associated with counterfeit ammunition?

Counterfeit ammunition poses serious safety risks. It may be improperly loaded with incorrect powders, components, or quantities, leading to unpredictable performance, extreme over-pressurization, and catastrophic firearm failure. It's crucial to vet the source of any ammunition.

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