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Old June 22, 2013, 10:18 PM   #1
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5.56 Federal 62gr Mod0 SOST Gel Test Results

Finished up the testing of the Federal 5.56 62gr Mod0 OTM SOST (T556TNB1) round. Here are the conditions and results.

Test conditions:
-16'' CHF PSA barrel
-Test rounds fired from 15 feet
-"FBI spec" (Their term, not mine...) Clear Ballistics gel block

Chrono Data:
-2997 feet per second
-1235 foot pounds of energy

-1st shot passed through 32'' of gel
-2nd shot stopped at 32''
-Fragmentation occurred along the way

Here's the video showing the test, the permanent cavity, both shots into the gel, and a discussion of the results:

Federal Mod0 Gel Test HD Video Link
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Old June 24, 2013, 10:53 PM   #2
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Thanks! Although I only shoot handloads, my latest batch is close to this spec.

Your videos keep getting better. Keep up the good work!
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Old June 27, 2013, 02:13 PM   #3
Bartholomew Roberts
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By FBI spec, does that mean you calibrated the gel with a BB? Because 32" is a whole lot of penetration for 5.56mm, even a bonded one. It sounds like your gel might have got a bit warm or in some other way isn't matching up with the FBI gel.
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Old June 28, 2013, 11:19 AM   #4
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No, they make several types of gel (some for arrows, dummies, and bullets). Their bullet gel is called "FBI spec." I calibrated it as I do every time (per mfg specs) and almost all of my tests are within 1-2" of ammo manufacturer published data.

Other tests have reported very similar penetration in actual ballistic gel so I think it's a good representation of what can be expected.
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Old June 30, 2013, 03:40 PM   #5
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Great video, thanks!
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