Gelatin tests: Federal's new 10mm 180 gr JSP, plus a couple .357 hand loads

Andrew Wiggin

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10mm Federal 180 gr JSP video link


10mm Federal 180 gr Vital Shok Trophy Bonded Jacketed Soft Point fired from 4.5" barrel EAA Witness into calibrated gelatin.

BB: 599.8 fps, 3.5"

Impact velocity: 1,270 fps
Penetration: 16.7"
Retained weight: 177.6 gr
Max expansion: 0.635"
Min expansion: 0.594"

Notes:

One petal was shed and left at about the 6.75" mark. I did not include denim because this is not a hollow point projectile and it is most likely to be used for hunting or animal defense. I doubt that denim would make any substantive difference in penetration or expansion.



.357 mag 125 gr Gold Dot hand load video link

.357 mag 125 gr Gold Dot over 14.0 gr AA9 Fired from 4" S&W Model 13 through four layers of denim into calibrated gelatin.

BB: 599.8 fps, 3.5"

Impact velocity: 1,037 fps
Penetration: 15.2"
Retained weight: 124.5 gr
Max expansion: 0.549"
Min expansion: 0.415"




.357 mag 158 gr JSP hand load video link

.357 mag 158 gr JSP over 11.0 gr AA7 fired from 4" barrel S&W Model 13 into calibrated gelatin.

BB: 599.8 fps, 3.5"

Impact velocity: 1,035 fps
Penetration: 19.4"
Retained weight: 157.4 gr
Max expansion: 0.467"
Min expansion: 0.361"
 
Interesting.

That 125gr must have been a very light load. AA9 is considerably slower than recommended for that weight of bullet. My 125gr 9mm LRN is doing the same velocity out of my CZ P01 using 3.8gr of PB.
 
Chris: yes it's definitely atypical. I'm playing around with different burn rates and charges because I'm looking for combinations that will work well in both the revolver and the carbine. I was happy to see that the bullet still expanded at that low velocity. I thought that the 135 gr (short barrel) bullet might be needed.
 
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