Cant Spell Hypervelocity without "Hype"

Published on December 28, 2025
Duration: 14:21

This video from Boondock Ballistician delves into the 5.7x28mm cartridge, exploring its history, technical evolution, and performance against competitors like 9x19mm NATO. The instructor, demonstrating high authority, analyzes ballistic data and discusses the challenges of reloading this specialized round. Key takeaways include the cartridge's development for armor penetration, its trajectory advantages over 9mm, and the complexities of its case design for handloaders.

Quick Summary

Boondock Ballistician, an expert in firearms ballistics, dissects the 5.7x28mm cartridge, comparing its performance, history, and technical evolution against 9x19mm NATO. The analysis covers SS90 vs. SS190 variants, NATO standardization, and reloading complexities, providing a deep dive into the caliber's capabilities and limitations.

Chapters

  1. 00:00Introduction to 5.7x28mm
  2. 00:43History and Development
  3. 01:29Technical Evolution: SS90 vs SS190
  4. 03:33NATO Standardization and Competition
  5. 05:20Ballistic Comparison: 5.7 vs 9mm
  6. 08:48Terminal Performance and Velocity
  7. 12:12Reloading Challenges

Frequently Asked Questions

What is the primary advantage of the 5.7x28mm cartridge over 9mm NATO?

The 5.7x28mm cartridge offers a significantly flatter trajectory and lower recoil compared to 9x19mm NATO, making it easier to manage in rapid fire scenarios and potentially more accurate at longer pistol distances.

What are the key differences between SS90 and SS190 5.7x28mm ammunition?

The original SS90 variant used a plastic core and high velocity. The later SS190 features a steel penetrator and aluminum core, designed for improved consistency and terminal performance, particularly against armor.

Is 5.7x28mm reloading more difficult than 9mm?

Yes, reloading 5.7x28mm is generally more difficult due to factory cases often being lubricated and a tendency for cases to experience 'reverse flare' after firing, requiring additional processing steps.

Did the 5.7x28mm achieve NATO standardization?

Yes, after a lengthy period of discussion and competition with other calibers like HK's 4.6mm, the 5.7x28mm cartridge was formally standardized by NATO in 2021, acknowledging its role in modern military applications.

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