Heavy Bone Test | Hard Cast VS FMJ 9mm Underwood 147gr +p VS Fiocchi 115gr FMJ

Published on April 9, 2024
Duration: 7:48

This video conducts a comparative heavy bone test using two 9mm ammunition types: 147gr +P Underwood hard cast and 115gr Fiocchi FMJ. The test aims to evaluate performance differences, particularly penetration and deformation, in unfrozen beef ribs. The presenter notes unexpected results, with the lighter FMJ round achieving slightly more penetration than the heavier hard cast load.

Quick Summary

In a 9mm heavy bone test comparing 147gr +P Underwood hard cast to 115gr Fiocchi FMJ, the lighter FMJ round achieved slightly more penetration (12.75 inches) than the hard cast (14.5 inches) in unfrozen beef ribs, using a Sig P365 XL.

Chapters

  1. 00:33Introduction & Test Setup
  2. 01:12147gr Hard Cast Test
  3. 02:32147gr Hard Cast Results
  4. 03:22115gr FMJ Test
  5. 04:21115gr FMJ Results
  6. 04:50124gr Hollow Point Test (Bonus)
  7. 05:16124gr Hollow Point Results
  8. 06:08Bullet Recovery & Comparison
  9. 06:45Conclusion & Future Tests

Frequently Asked Questions

What was the primary goal of the heavy bone test in this video?

The primary goal was to compare the performance of 147gr +P Underwood hard cast 9mm ammunition against 115gr Fiocchi FMJ 9mm ammunition in a heavy bone test, specifically evaluating penetration and deformation in unfrozen beef ribs.

Which 9mm ammunition performed better in the heavy bone test?

Unexpectedly, the 115gr Fiocchi FMJ round achieved slightly more penetration (12.75 inches) than the 147gr +P Underwood hard cast round (14.5 inches) in the unfrozen beef rib test.

What firearm was used for the 9mm ammunition testing?

The Sig Sauer P365 XL pistol was used for all ammunition tests. The presenter selected this firearm for its balanced barrel length, making it suitable for comparing different ammunition types.

How did the hard cast and FMJ bullets deform after impacting bone?

The 147gr Underwood hard cast bullet showed some nose deformation after hitting bone. The 115gr Fiocchi FMJ's jacket began to break apart on one side but largely held together during the penetration test.

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