Ballistic gelatin test results : .308 Winchester 190gr Extreme Shock

[Brass Fetcher]

Special thanks to Carr and the Franklin Gun Shop (Athens, GA) for their sponsorship of this test.

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Brass Fetcher ballistic testing

Test # Franklin Gun Shop 1
Bare gelatin block. (Nominal 10% concentration)

Cartridge : .308 Winchester 190gr Extreme Shock 'Lead-free tungsten-nytrilium composite'

Block Calibration : 3.0 ± 0.05 inch penetration @ 585 ± 0.5 ft/sec

Block Calibration temperature : 37.1 ± 0.05 Degrees Fahrenheit

Block Core temperature : 37.9 ± 0.05 Degrees Fahrenheit

Bullet Performance:

Impact Velocity : 2380 ± 0.5 feet/second
Deepest Penetration Depth : 15.5 ± 0.05 Inch
Maximum Crack Diameter : 5.8 ± 0.05 Inch
Max Crack Diameter Location : 7.1 ± 0.05 Inch
Cavitation Depth : 0.0-15.5 ± 0.05 Inch

Notes:
Weapon – Heckler & Koch HK91, with 17.7” barrel length
Distance – 10.0 feet, muzzle to gelatin impact face
Test site conditions - 67 deg F, 48% relative humidity
Time out of refrigeration prior to shot impact - 3 minutes
Bullet recovered weight – 38.6gr
Bullet fragment longest edge - 0.665"

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[Dr. Tad Hussein Winslow]

I wouldn't care to be shot with it - looks pretty extreme to me.

 

[Z-Michigan]

Thank you for doing and posting this testing!

In this case, I have to say that the block damage looks a lot less severe than what the Dr. Fackler testing graphics show for a 150gr .308 soft-point bullet.

In fact, it looks a bit less severe than 75gr Hornady TAP .223 in gelatin, or the 6.8 SPC 115gr OTM in gelatin, based on gelatin testing I've seen other places.

And lets not even talk about West German 150gr 7.62x51mm NATO spec with the thin steel jacket that fragments like M193, only bigger.

Realistically, any deforming or fragmenting .308 round is going to be devastating at anything over 1700fps or so (arbitrary #). I don't see that the extreme shock offers anything but marketing hype.

 

[Deer Hunter]

For the price of each round, I was expecting the block to be reduced to a smoldering pile of ashes.

 

[GTSteve03]

Is that the same brand of "Extreme Shock" as these guys?

 

[Deer Hunter]

Yep, one in the same.

 

[Thernlund]

Friendly advice... might want to consider reducing the size of those pics a bit. Way to big for most screens.


-T.

 

[Ridgerunner665]

Thanks for the test...

I would like to see a test like this done on the Barnes 168 grain TSX bullet...from a 20 inch barrel.

I bet Barnes Bullets would sponsor it...I've talked to them several times for various reasons...they are always eager to help. I bet they'd be happy to get a little advertisement.

 

[mrsig]

Did your pants catch on fire while performing this test? I fear this ammo because I do not want flames around there...

- Sig

 

[Soybomb]

Just a suggestion but you might also want to include the block dimensions in your data

 

[sarduy]

THANKS FOR SHARE!

very good info!

 

[LaEscopeta]

Thank you for doing and posting this testing!

+1

Looking at the Extreme Shock web site, it appears this is not a hollow point round, so I assume it yawed and then fragmented? Or did it just break apart on impact? Any way to tell?

If the point is to reduce the risk of the round going through the target and injuring something that is not the intended, I would say it looks to be effective. The small fragments do not look particularly lethal at the speed they would be going after exiting. If the point is maximum damage to the target, I think a regular .308 hollow point 190gr bullet going 2380 fps would show more damage and more penetration.

And, I know what Tungsten is but I still don't know what Nytrilium is. A Google search still shows this mystery element (compound?) to exist only on the Extreme Shock web site.

 

[Brass Fetcher]

I just took one of the bullets apart - it appears to be a hollow copper cavity with some sort of powdered metal in the core. I haven't had the chance to wade through the metal, to check to see if there is some sort of solid core, etc. But I was unable to find anything other than metal dust and jacket fragments in the block.

 

[Dr. Tad Hussein Winslow]

but I still don't know what Nytrilium is. A Google search still shows this mystery element (compound?) to exist only on the Extreme Shock web site

It's on the expanded list of elements, dontchya know.

 

[chris in va]

2300fps from a 308? Isn't that a little slow?

 

[ny32182]

I can't believe some people still take this crap seriously.

Now they are just making up names of elements/alloys/whatever they think "nytrilium" is... lol...

I think this says it all:

 

[rcmodel]

The reduced .308 velocity is likely due to the "nytrilium" absorbing the heat from the expanding powder gas and decreasing the expansion ratio, resulting in a huge velocity loss.

Thats one reason why NASA has never used "nytrilium" in rocket engines.

That, plus the fact there isn't such a thing.

rcmodel

 

[Matt-J2]

I am extremely shocked by those results.

 

[kcmarine]

Is there a chemist here that could find out what that "nytrilium" stuff is? Seems like nothing more than a marketing gimmick.

 

[MTMilitiaman]

What? No mushroom cloud?

This:

http://www.tacticalshotgun.ca/conte...in_barrel/gelatin_308_155gr_hornady_amax.html

Looks better to me. It is more proven, and probably considerably less expensive as well.

 

[Soybomb]

Is there a chemist here that could find out what that "nytrilium" stuff is? Seems like nothing more than a marketing gimmick.

No need for a chemist, you've already figured it out.

 

[kcmarine]

Hm... that's deep.


(Though I do want to know what the crap really is )

 

[Thernlund]

What? No mushroom cloud?

-T.

 

[Aaryq]

I'm not making fun of your test. I'm really glad you did this for us. I'm actually surprised it didn't bounce off of the gel...that said...

Extreme shock: When you're hit with this, it's all over.

 

[Z-Michigan]

Nice, Thernlund. I'll bet they use it. Wonder if they'll pay you royalties.