Springfield Hellion VHS port explosion? What just happened?

Published on March 23, 2022
Duration: 11:31

This guide details how to investigate the ejection port fireball phenomenon observed on the Springfield Hellion (VHS-2), as demonstrated by Tim from Military Arms Channel. It covers variables like ammunition, suppressor type, and ambient temperature, offering insights into the firearm's gas system and design. The analysis emphasizes safety considerations due to the nature of the event.

Quick Summary

The Springfield Hellion (VHS-2) can exhibit ejection port fireballs, particularly when suppressed and in cold weather. This phenomenon is influenced by suppressor type (flow-through vs. baffle), ammunition, and ambient temperature. While the bullpup design offers some protection, potential burn risks exist, especially for left-handed shooters during drills.

Chapters

  1. 00:00Introduction to Ejection Port 'Explosion'
  2. 01:51Sponsor and Optics Mention
  3. 02:38Suppressor Testing and Back Pressure
  4. 03:37Observing the Phenomenon
  5. 05:29Ammunition and Suppressor Variables
  6. 06:41Temperature Correlation
  7. 09:01Safety and Design Analysis
  8. 11:01Conclusion and Community Feedback

Frequently Asked Questions

What causes the ejection port fireball on the Springfield Hellion (VHS-2)?

The ejection port fireball on the Springfield Hellion (VHS-2) is often observed when using suppressors, particularly in cold weather. It's linked to the interaction of gas dynamics, suppressor back pressure, and ambient temperature, potentially involving unburnt powder igniting in the port.

Does ammunition type affect the Hellion's ejection port fireball?

Yes, testing with Norma Tactical and Federal American Eagle .223 Remington 55gr ball ammunition showed the phenomenon occurred across different rifles and suppressors, suggesting ammunition can be a contributing factor.

How do different suppressors impact the Hellion's ejection port fireball?

Traditional baffle suppressors (like YHM Turbo) and low-pressure flow-through suppressors (like OSS/Huxwrx and X2 Dev Group Apollo) were tested. The phenomenon was more frequently observed with the OSS suppressor, indicating suppressor design and its effect on back pressure are significant variables.

Is the Springfield Hellion's ejection port fireball a safety concern?

While the rifle's flared brass deflector offers some protection, a significant ejection port fireball could pose a burn risk, especially for left-handed shooters during transition drills. Awareness and caution are advised.

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