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View Full Version : Gelatin tests: 10mm 195 & 156 gr cast HP, Underwood 9mm 115 gr Zero JHP



Andrew Wiggin
10-02-2013, 11:56 AM
I didn't know that this forum existed until I heard about the problems that Doc Roberts had on another forum. If he's here, it's got to be a great place. Sucks that people had to be jackwagons but I'm glad I found out about another gun forum. I've been posting my tests on that other forum for some time. For the record, my tests are conducted using grocery store gelatin (typically 250 +/- 10), not 250 +/- 5 bloom photographer's gelatin like Doc Roberts or other professionals would use. My testing is also not done in laboratory conditions, nor do I shoot a statistically relevant sample size. Still, my results have been consistent with professional tests when I've tested the same loads and I try to keep my methods as close to the standard as possible. I use actual gelatin, not one of the other synthetic mediums that are popular today. I store the gelatin at 39 degrees for several days before the test to ensure the temperature is consistent throughout the block. I calibrate the gelatin with a .177 BB at 590 fps +/- 15 fps and include the result with the tests. I shoot through four layers of denim for pistol tests. In short, I try to make the results as relevant as possible but keep in mind that I am not a perfeshunal and the results are only intended to be thought provoking, not definitive evidence. Thanks for looking and let me know if there is any way I could improve my tests.





http://youtu.be/fhADWIC8Et0

10mm 156 gr Lyman Devastator video link (http://youtu.be/fhADWIC8Et0)

10mm 156 gr Lyman Devastator hand load fired from 4.5" barrel EAA Witness through four layers of denim into calibrated gelatin.

BB: 587.3, 3.6"

Impact velocity: 1,450 fps
Penetration: 13.7"
Retained weight: N/A
Expansion: N/A

This bullet definitely lived up to it's name. Like the Holy Hand Grenade of Antioch. I just couldn't stop taking pics of this one. The deepest recovered fragment only weighed 22.5 gr and measured 0.616" x 0.307" x 0.110" but that fragment plus all the strained fragments (45.6 gr) only adds up to 68.1 gr, leaving 87.9 gr unaccounted for. If you look closely, you can see the mark where a fragment left the block at around the 13" mark, just before the last fragment that is in the block. I believe this to be the core, which should weigh in the neighborhood of 87 gr. Hopefully I can test again to confirm this.





http://youtu.be/N_2UtNtubng

10mm 195 gr Mihec cast LHP video link (http://youtu.be/N_2UtNtubng)

10mm 195 gr Mihec cast LHP (shallow pin) fired from 4.25" S&W 1076 through four layers of denim into calibrated gelatin.

BB: 587.3 fps, 3.6"

Impact velocity: 1,100 fps
Penetration: 26.6"
Retained weight: 192.2 gr

(no expansion)





http://youtu.be/C3JkUe2haFQ

9mm Underwood 115 gr Zero JHP video link (http://youtu.be/C3JkUe2haFQ)



9mm Underwood 115 gr Zero JHP fired from Glock 22 with Lone Wolf 9mm conversion barrel through four layers of denim into calibrated gelatin.

BB: 587.3 fps, 3.6"

Impact velocity: 1,234 fps
Penetration: 18.6"
Retained weight: 92.5 gr

(no expansion)