10mm gelatin tests

A

Andrew Wiggin

New member
Buffalo Bore 180 gr Sierra Power Jacket




10mm Buffalo Bore 180 gr Sierra Power Jacket fired from 4.5" barrel EAA Witness through four layers of denim into calibrated gelatin.

BB: 599.2 fps, 2.9"


Impact velocity: 1,311 fps
Penetration: 10.7"
Retained weight: 181.1 gr
Max expansion: 0.853"
Min expansion: 0.560"




Selway 180 gr JHP




10mm Selway 180 gr JHP fired from 4.5" barrel EAA Witness through four layers of denim into calibrated gelatin.

BB: 599.2 fps, 2.9"


Impact velocity: 1,105 fps
Penetration: 12.9"
Retained weight: 175.2 gr
Max expansion: 0.678"
Min expansion: 0.600"






10mm 180 gr Winchester generic JHP hand load




10mm Winchester 180 gr generic JHP loaded over 10.0 gr of AA#7 fired from 4.5" barrel EAA Witness through four layers of denim into calibrated gelatin.

BB: 599.2 fps, 2.9"

Impact velocity: 1,106 fps
Penetration: greater than 16"
Retained weight: N/A
Max expansion: N/A
Min expansion: N/A

The bullet experienced significant fragmentation and deviated from its path, exiting the block at about the 16" mark. A second shot performed similarly.
 
I'm assuming you are a hunter and plan to hunt with 10mm. Punching holes in paper doesn't require all that work with calibrated gelatin. What are hunting? Which ammunition do you think would work best on the game you are hunting?
 
I mainly carry the 10mm for defense against humans and large animals. I might some day use it to hunt javalina or other game.

For human beings, several of the 165-180 gr JHP loads that I've tested would be perfectly adequate. (You can see the other tests on my Youtube channel, if you care)

For large animals, any 180 gr or heavier solid would do well. The heavier it is and the flatter the meplat, the better it should perform. A 200 gr XTP at about 1,200 fps would be a good compromise load for camping that expands as well as penetrates deeply enough to be useful for defense against animals like the small black bear or cougars in my neck of the woods.

I think I'd choose a 155 gr Gold Dot for javelina.

I'm not particularly impressed with any of the loads I tested today.
 
The relatively low penetration of the Buffalo Bore round suggests that they're driving that bullet too hard and it's expanding more than intended by the bullet designer which is cutting down on penetration.
 
Absolutely. 1,300 fps is screaming for a 180 gr bullet. You can see in the pic that the bullet had a very wide cavity to begin with so the extremely high velocity coupled with what I suspect would have been aggressive, early expansion even at lower velocity meant it didn't have a chance. I'm surprised it held together though.
 
Good tests! Informative and cleanly presented.

I'll have to compare them to what's over to Brass Fetcher.

tipoc
 
Absolutely. 1,300 fps is screaming for a 180 gr bullet. You can see in the pic that the bullet had a very wide cavity to begin with so the extremely high velocity coupled with what I suspect would have been aggressive, early expansion even at lower velocity meant it didn't have a chance. I'm surprised it held together though.
Click to expand...
The 180gr Gold Dot holds together relatively well at 1475fps but expands too rapidly for deer. Would probably do fine at 1200-1300fps.
 
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