Ballistic test: .44 mag from a carbine and 10mm 135 gr cast bullet

[AndrewWiggin]

.44 mag Winchester 240 gr JSP video link


.44 mag Winchester 240 gr JSP fired from Marlin 1894 carbine into calibrated gelatin and calibrated tactical rain water.

BB: 594.1 fps, 3.4"

Gelatin test data:

Impact velocity: 1,848 fps
Penetration: 21.1"
Retained weight: 231.4 gr
Max expansion: 0.711"
Min expansion: 0.732"

Sorry about the cross section of the wound channel. This load really crushed the block and caused a substantial amount of disruption, especially in the first 10" or so. When I cut into the block for the cross section photo it practically fell apart. The photo really doesn't do justice to the damage that was done.

[AndrewWiggin]

10mm 135 gr Mihec video link


10mm 135 gr Mihec 10:1 lead/tin alloy over 12.5 gr SR 4756 fired from 4.25" barrel S&W 1076 through four layers of denim into calibrated gelatin.

BB: 594.1 fps, 3.4"

Gelatin results:

Impact velocity: 1,548 fps
Penetration: 7.1"
Retained weight: 73.0 gr
Min Expansion: 0.651"
Max expansion: 0.708"

We fired a few rounds over a chronograph with the same powder and alloy but different charge weights and these are the velocities we got:

11.0 gr 1,512 fps
11,5 gr 1,484 fps
12.0 gr 1,568 fps
12.5 gr 1,610 fps

[FishTaco]

So much for the magic of 'energy deposit'.

[AndrewWiggin]

Lol, right? I actually thought it might stay together with that much tin, but the velocity was just too much.

[Nanuk]

The 44 mag was not surprising. That 10 mm load was brutal though. Sure only 7" of penetration, but what a wound channel.