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.308 versus 7.62x39 versus 5.56 versus 5.45 penetration through steel


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#1 my762buzz

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Posted 12 February 2010 - 11:38 PM

I was getting ready to shoot some steel plates and compare the results but I think I just saved myself some time.
See post number 14



Click here to see

I started this post a few years ago with a 9mm from my Beretta vs bullet proof glass (BPG) from my apartment in the Middle East. I thought it was an interesting experiment. I updated it a few months ago with 1/4" steel plate and the same BPG vs a 5.56mm fired from my Bushmaster AR and a 7.62 NATO fired from my G-3, both at 100yds. Here a quick reminder of the results...

The hole on the left side near the middle is from a 7.62NATO, the one below it is a 7.62x39. The two dents to the right were made by the 5.56 and 5.45. Neither penetrated. As a side note, the 7.62NATO went through the 1/4 steel, through the 4x4 block behind it, through a 2x4 and buried itself in the send. Dayuuuum.
Posted Image
Here is the backside view.
Posted Image








Wow, .308 and 7.62x39 went right through where the .223 or 5.45 could not.
I'm impressed with the added performance of steel plate penetration over .223 or 5.45 .

Edited by my762buzz, 13 February 2010 - 06:09 PM.


#2 Rhodes1968

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Posted 13 February 2010 - 12:20 AM

Yep that would be why all I have is 30 cal Saigas. That 308 can take out an engine block, the Saiga 308 just beats all others hands down. Impressive test thanks for posting.
Had the Japanese got as far as India, Gandhi's theories of "passive resistance" would have floated down the Ganges River with his bayoneted, beheaded carcass. -- Mike Vanderboegh.

#3 RobRez

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Posted 13 February 2010 - 12:22 AM

Nice post! I wonder how thick of a steel plate it would take to stop the 7.62 rounds? Sounds like making the homemade bulletproof car would be heavier than a hippo's mother in law!!

#4 Jim Digriz

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Posted 13 February 2010 - 09:48 AM

That forum requires registration. Would you mind telling us the results against the bullet resistant glass?

#5 rifleshooter474

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Posted 13 February 2010 - 10:26 AM

Thanks for posting the pictures of your test. What Ammo. was used in the tests?

#6 my762buzz

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Posted 13 February 2010 - 06:07 PM

That forum requires registration. Would you mind telling us the results against the bullet resistant glass?


http://www.glocktalk...ad.php?t=983439
Sorry try the link again. No resgistration needed.

#7 my762buzz

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Posted 13 February 2010 - 06:12 PM

Thanks for posting the pictures of your test. What Ammo. was used in the tests?


It wasn't mytest. The ammo used in mentioned on the link.

#8 Classy Kalashnikov

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Posted 13 February 2010 - 08:09 PM

The suspect fired roughly thirty rounds of 7.62x39 from an AK at the officer. The car was totaled due to internal damage. Notice the bullets penetrate the steel hood even at a very shallow angle. Some of them are coming almost parallel to the hood. Also notice the tires on the right side are both flat. Looking at the picture it appears that the round that went through the headlight, through the wheel compartment and into the tire. The dowels are inserted to show trajectory. I suggest this experiment is not replicated.

Attached Files


Edited by Klassy Kalashnikov, 13 February 2010 - 08:19 PM.

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#9 Classy Kalashnikov

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Posted 13 February 2010 - 08:16 PM

There is also a nice demonstration on Youtube done for a college project. The results are various 7.62x39 and .223 commercial rounds such as Bear and Wolf, FMJ, JHP, and JSP.

Brown bear x39 FMJ tumbles twice along a ~36" deep wound track


Wolf x39 JHP making some very nasty wounds:


125gr JSP x39 handload - Wolf/bear also offer similar loads
http://www.youtube.com/watch?v=QIs-Y8-p3T4
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#10 jbrubaker

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Posted 13 February 2010 - 09:59 PM

Saw those videos a few weeks ago. It's incredible how much shock the HP imparts to the gelatin. The penetration of the FMJ is ridiculous. The 7.62 round is definitely impressive.

#11 my762buzz

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Posted 14 February 2010 - 12:05 AM

Saw those videos a few weeks ago. It's incredible how much shock the HP imparts to the gelatin. The penetration of the FMJ is ridiculous. The 7.62 round is definitely impressive.









I noticed that an expanding 7.62x389 bullet that stops in 1 ft of ballistic gel will pretty much rip a water jugg completely open because it stops and deposits energy.

This happens on the 4th round.

The bullets that pass through 2 ft of ballistic gel are not contained in 1 water jugg and do exit.

Maximum tissue disruption is going to take place within 16 inches or less of what ballistic gel simulates.
If it passes over 16 inches, that is a zone that is no longer useful in a typical terminal effects.

Edited by my762buzz, 14 February 2010 - 12:20 AM.


#12 JulianH

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Posted 17 February 2010 - 12:29 AM

The suspect fired roughly thirty rounds of 7.62x39 from an AK at the officer. The car was totaled due to internal damage.


Holy shit! How did the officer fare?

#13 thehopping1

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Posted 17 February 2010 - 04:29 AM

Nice post! I wonder how thick of a steel plate it would take to stop the 7.62 rounds? Sounds like making the homemade bulletproof car would be heavier than a hippo's mother in law!!



I got some 3/8 steel plate I will take out next time and see if my x39 will penetrate. I wish I had a 308 to join the party, but I'm sure my Mosin will go right through it. It almost penetrated 5/8 thick chromoly bar stock, and steel core 308 didn't do quite as much damage. I'm trying to get some armor plate to see what will go through that.
All hope is gone!

#14 Classy Kalashnikov

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Posted 17 February 2010 - 04:47 AM


The suspect fired roughly thirty rounds of 7.62x39 from an AK at the officer. The car was totaled due to internal damage.


Holy shit! How did the officer fare?


No clue, was just copy/pasting from the blog I saw it on.
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