http://www.thefirearmblog.com/blog/2014 ... o-warning/
Today on March 25th, 2014 I set out to test some PCP polymer cased ammo in some commonly available military rifles. I drug out a PTR-91 and an FN FAL with the ammo.
I function tested each rifle with 40 rounds of Winchester 7.62×51 beforehand to make sure each gun was in working order. They worked through the brass cased stuff with no problem, but with the polymer cased ammo the following occurred:
With the PTR, the first round caused a catastrophic failure, destroying the magazine:
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The PTR ripped the case in half:
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I chalked this up to the fluted chamber of the PTR, and assumed that using it in the FAL would be no problem, but I still chose to duck behind the table when firing… and I am glad that I did:
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Notice the magazine spring in the top left corner of the photo above.
The floor plate also punched through a range bag and into the wooden table:
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This was caused by a traditional case rupture at the junction of the polymer and the steel base:
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My arm was hit with debris and some shrap, but nothing to worry to much about.
The magazine was bowed out with such force that my 180 pound body was not enough to bend it back to shape:
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Had my hand or arm below the floor plate or alongside the magazine, this could have been really bad. Luckily I was overly cautious and ducked below a table to test it.
The lot number of the ammunition that failed (printed on the inside flap) is X121300001. If you have this ammo, I would advise that you do not shoot it.
- See more at: http://www.thefirearmblog.com/blog/2014 ... 9ipzC.dpuf
