Thanks to LoneWolfUSMC

http://8541tactical.com/2014/01/01/pcp-polymer-match-ammunition-review/

PCP Lightweight Polymer Cased Ammunition Review
by Jaime Johnson
28DEC2013








CONCLUSION

Technology is always advancing and that’s always a great thing. The problems come with how they are being advanced, why they are being advanced, what that advancement costs us, and whether or not we are willing to pay it. With regards to the PCP polymer ammunition, something has gone terribly wrong.

The ammunition is horribly inaccurate, the powder is “thrown” inconsistently, and the cartridges disintegrate in your rifle after being fired. The only thing good about this ammo was the consistent bullet weights, but that doesn’t do you any good if the cartridges don’t fire. At a 57.5% Failure To Fire rate (17 out of 40 fired), added on top of the above mentioned downsides of this ammunition, I have nothing to say other than “absolutely pathetic”.

PCP stated in the email they sent me, regarding their selection of me for their public testing trials, that PCP had conducted 1,000's of factory tests before opening the testing to a select few of the public. I sincerely would like to know the results of those tests because if they coincide with my results, I would like to know why they think this ammunition is even close for public use.

Full article on hotlink above.

Interesting.  In for PCP's followup statement to this and for future end user reviews.  For this to catch on it needed/needs a STELLAR initial launch (pricing would have helped), this is how internet rumors that can not be forgotten start....hope it was a bad batch but it will not inspire many others to buy $2/rnd ammo.

Roger that.

Especially since 175 grain Federal Gold Medal Match runs 25 bucks a box, PCP would have to beat that by a mile.

I was surprised to see the powder charge varied by 1.2 grains.

Nice to see I made the right choice when I told them to pound sand after seeing their price per box.

Thanks for the breakdown on their "ammo" (if it should even be called that)

You should post pictures of the failed cases...

ZA

Tag

What a stellar start to their new product line.

I almost got in on the testing of this ammo, but I got rid of all my .308 guns. I was going to use someone's SCAR-17.  If that was how it did in a bolt gun, I can only imagine what would happen in a gasser.

I don't think that many people realize how important metallurgy is when acting as a high pressure gasket. I also wonder how much heat load the minimal amount of forward steel now has to compensate for, since there is no brass or steel alloy in the rest of the case to act as a sink or transfer medium to the rifle's chamber.

I know that reputable ammunition companies have invested significant intellectual and engineering resources into case alloys, and they maintain stringent quality control standards on their formulas for brass, while looking for ways to improve to stay ahead of the competitive curve.

I would think an aluminum case would be easier to engineer for rifle cartridges than plastic yet we don't see aluminum used for this.
I watched the m240 video they had, how they got a belt of these to run is a mystery based on these cases.

like to see how that .308 stuff would run thru an AR. Not my Ar that is.
I bet that case would be destroyed.

I roll my own, not interested in brass ratting and finding this stuff. But i really dont think this stuff will catch on.

A-10 GAU-8 30mm uses Aluminum cases. It was necessary to bring the system weight down to an acceptable level for the payload.

Yes, I have a dummy GAU-8 round sitting on my reloading bench for 'inspiration'
So why are there no Al rifle cartridges? Should be able to accomplish what PCP is trying to do without the plastic issues.

Somehow this doesn't surprise me. Someone needs to sacrafice a box and see just how inconsistent the powder charges are, over a grain of variance is crazy.

I wonder if the FTFs were a result of the finger malleable cases deflecting and absorbing some of the impact of the firing pin? As one of the posters on your sight said the primer strikes look a little light, and if the case is deflecting it's not being caused by the rifle. I wonder if the case distorting prior to ignition would contribute at all to the lack of accuracy, course with the powder charges being so out of line it would be impossible to say.

I participated in the beta test... only shot 5 rnds before a round blew out the magazine into pieces...
3 rnds in a colt LE 901 OK... 2nd of 3 rnds loaded into DPMS LR308 blew out the case near the base...
you can see pics here...  
http://m14forum.com/ammunition/151425-pcp-ammo-now-beta-testing-polymer-cased-ammunition-2.html