Episode
PGM Podcast Ep 022 - Hydrostatic Shock
- Podcast
- The PGM Podcast
- Published
- May 23, 2025
- Duration seconds
- 7040
- Processing state
processed
Actions
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Summary
A deep dive into the physics of terminal ballistics and the debate surrounding hydrostatic shock. The hosts analyze the reliability of energy transfer in high-velocity projectiles versus subsonic rounds.
Topics
- Terminal Ballistics
- Hydrostatic Shock
- Handgun Selection
- Kinetic Energy
- Cartridge Loading
- Firearms Training
- Ballistic Physics
Highlights
- Main idea: Hydrostatic shock reliability is heavily dependent on the specific foot-pounds of energy delivered by a round
- Practical takeaway: Handgun selection for duty or EDC should be based on specific use-case requirements rather than generic competition standards
- Failure mode: Overloading cartridges, such as pushing .243 Winchester to extreme velocities, risks dangerous case separation
- Technical debate: The discussion weighs the effectiveness of high-velocity shockwaves against the bone-crushing potential of heavy, subsonic projectiles
- Main idea: The distinction between 'competition guns' and 'duty guns' is often a matter of division and specific performance constraints
Chapters
1:00Handgun Classifications: A debate on whether all handguns can be considered competition guns and how different divisions impact usage.19:00Duty vs. Personal Defense: Evaluating the severity of threats and the distinction between duty-use weapons and personal protection.46:00Ballistic History and Calibers: Discussing historical hunting calibers and the evolution of modern cartridge performance.1:03:00The Physics of Hydrostatic Shock: An analysis of energy delivery, foot-pounds, and the mathematical reliability of shockwaves in tissue.1:12:00High-Velocity vs. Subsonic Impact: Comparing the devastating effects of high-velocity projectiles against the kinetic energy of heavy, slow-moving rounds.1:39:00Pressure Waves and Cavitation: Examining the mechanics of shockwaves exceeding the diameter of the projectile entering the body.1:48:00Squad Tactics and Weaponry: A brief look at infantry squad roles and the use of heavier support weapons.