Rimfire Rifles Gel Test .22LR .22WMR /.22MAG .17HMR

Published on February 12, 2023
Duration: 11:23

This video provides a comparative gel test of three popular rimfire cartridges: .22LR, .22WMR, and .17HMR, fired from rifles at 15 yards into 10% ballistic gelatin. The instructor, with experience in previous gel tests and longer-range shooting, analyzes penetration depth, wound cavity formation, and retained bullet weight for each caliber. The results highlight the explosive fragmentation of the .22WMR and .17HMR rounds at this close range, leading to shallower penetration but significant damage, while the .22LR showed deeper penetration with a less dramatic wound channel.

Quick Summary

In a 15-yard ballistic gelatin test, the .22LR (CCI Stinger) penetrated about 10.5 inches, while the .22WMR (Hornady V-Max) and .17HMR (Winchester A17) penetrated only around 6-6.5 inches due to explosive fragmentation. Retained weights showed significant material loss for the .22WMR and .17HMR.

Chapters

  1. 00:00Introduction to Rimfire Gel Test
  2. 00:45Ammunition Selection for Test
  3. 01:56Gelatin Block Setup and Conditions
  4. 03:01Firing Order and Distance
  5. 04:02Initial Gelatin Results Overview
  6. 04:17Cavity and Penetration Differences
  7. 05:19Measuring Penetration Depths
  8. 06:04Gelatin Blocks from Bottom View
  9. 07:30Bullet Extraction and Condition
  10. 08:01Retained Bullet Weight Analysis
  11. 09:10Reasons for Penetration Differences
  12. 10:08Test Context and Future Plans
  13. 10:21Links to Previous Videos and Reviews

Frequently Asked Questions

What was the penetration depth of the .22LR, .22WMR, and .17HMR in the gel test?

In the 15-yard gel test, the .22LR (CCI Stinger) penetrated approximately 10.5 inches. The .22WMR (Hornady V-Max) penetrated around 6 inches, and the .17HMR (Winchester A17) penetrated about 6.25-6.5 inches.

Why did the .22WMR and .17HMR have shallower penetration than the .22LR?

The .22WMR and .17HMR rounds exhibited very explosive fragmentation upon impact at 15 yards. This fragmentation caused them to shed significant material, leading to shallower penetration compared to the more intact .22LR round.

What was the retained weight of the tested rimfire ammunition after the gel test?

The retained weights were: .22LR Stinger - 23.1 grains (out of 32), .22WMR V-Max - 13.9 grains (out of 30), and .17HMR A17 - 7.9 grains (out of 17). This shows significant material loss for the .22WMR and .17HMR.

How do longer distances affect the terminal ballistics of .22WMR and .17HMR?

At longer distances (50-100+ yards), the .22WMR and .17HMR rounds are expected to travel slower, hold together better, and penetrate deeper. However, the wound cavity might be less dramatic due to reduced explosive impact from lower velocity.

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