pushed in bullet

Discuss rifles chambered for the 5.7x28mm; P90, PS90, and AR57.
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Ditch
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pushed in bullet

Post by Ditch » 10 May 2013, 13:32

I was at the range today with my PS90 mid round count out of 50 rnd magazine (factory), had two AE rounds feed failures. The bullets were pushed in.
Is this riffle problem ammo or unknown?
I tried to tactical search but I do not know what proper terminology for the problem.


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Last edited by Ditch on 10 May 2013, 14:03, edited 2 times in total.

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Rapier1772
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Re: pushed in bullet

Post by Rapier1772 » 10 May 2013, 13:58

Punctuation would help decode the question.
But as to what is causing this, I believe someone else posted a similar problem a while back and Jay mentioned it was a feed issue. He said the bulet wasn't exiting the mag as lined up as it should but that his HD mag springs would solve the issue.
I haven't been able to find any AE around here to try it out though - got the springs, just not the (right) ammo.
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Ditch
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Re: pushed in bullet

Post by Ditch » 10 May 2013, 14:05

Thanks, sorry about the punctuation those dots baffle me. hope my edit fixed confusion.

Buffman
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Re: pushed in bullet

Post by Buffman » 10 May 2013, 19:00

this has been happening with some of the AE rounds

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grimmond
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Re: pushed in bullet

Post by grimmond » 11 May 2013, 11:36

Is this an issue solely with this ammo in the PS90/P90? I pretty much only shot 1 box out of my FSN and didn't run into any issues. Since it was such a low performer I pulled the bullets on the other 9 boxes I had to reload higher. Of my reloads I used some primer sealer at the joint to give them a little more support due to the short seating depth. So far with my reloads I have not seen this issue yet.
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Ditch
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Re: pushed in bullet

Post by Ditch » 11 May 2013, 12:04

I have shot about 500+ rounds out of the pistol with no issue like this only in my ps90.

j-wat
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Re: pushed in bullet

Post by j-wat » 11 May 2013, 20:32

Could be the ammo, same issue for me only happens in my P90 with AE. As a round feeds into the chamber it gets stuck between the chamber entrance and bolt, and winds up vertical between the two with the bullet pushed in like that. Runs fine through the pistol.

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grimmond
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Re: pushed in bullet

Post by grimmond » 11 May 2013, 21:08

Anyone have an issue with these in the 57 upper since it uses the same magazine/feed style as the PS90?
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techspec
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Re: pushed in bullet

Post by techspec » 13 May 2013, 17:04

Had 2 of 400 AE rounds do this today at the range, both from the same box. I've probably fired 600 AE rounds through my PS90 so far. No feed problems with blue-box FN branded ammo.

Jason

IrishRedneck86
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Re: pushed in bullet

Post by IrishRedneck86 » 24 May 2013, 20:11

Grimmond: I have had this issue with my AR57 but only with the Federal ammo. Not a single problem with FNH SS197 blue tips or the SS195 hollowpoints. I thought it might have been a problem with the mag I had at the time because it's an ATI mag but like I said it had no problem feeding and shooting the FNH rounds. Its was happening every 5th round at least once I got shooing from a 50rd mag but when it did happen it usually caught and screwed 2-3rds when I was trying to chamber and get it rolling again. I also have to mention though I had another go round with the federal ammo in my AR57 but with brand new FNH mags and it still happened but only once in 100rds

But now seeing this it could very possibly be the ammo is the problem in the rifles only because as others have stated the FiveSeven shoots all rounds just fine but you put the federal in the PS90 or AR57 and they sink the round into the casing.

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grimmond
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Re: pushed in bullet

Post by grimmond » 24 May 2013, 22:48

I am thinking that it could be a adhesive issue. I noticed with a new batch I pulled last night that a lot of them didn't have any adhesive holding them in. I wonder if you took some clear nail polish or primer/bullet sealer and touched up around the edge of the joint if that would cease the issue. I will try and run a small test and see if adding adhesive will increase the pressure significantly.
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Re: pushed in bullet

Post by JollyRogers » 25 May 2013, 05:10

Has anyone contacted Federal about this issue? The ammo is supposed to be for the PS90/FsN and if it is doing this, then they need to be made aware, though I doubt they will address it. I have only run about 200rnds of AE through my PS90, and had one FTF issue, but nothing like this. I have run a few hundred of the AE through the FsN with zero issues like this - unless using a ProMag 30 rnd mag loaded past 25, which resulted in FTF problems.

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Re: pushed in bullet

Post by Beecher Tool » 25 May 2013, 13:47

I went to the range with my new FsN and a newly built out AR57 built on a PSA M4 lower, PSA Premium LPK, brand new AR57 Gen.2 upper, and 3 FN 50 round mags. Took 500 rounds of 40 grain AE ammo. The pistol shot 300 of the rounds flawlessly and was a pleasure to shoot. The AR57 was a PITA...there were at least four rounds where the round appears to have been slammed by the bolt and had the projectile pushed into the case...in each instance there was an FTF...and more than merely pushing the projectile in the cartridge necks were smashed....pretty badly....see photos below.....it seems that everyone is saying that they don't have the issue with hotter ammo. I have loaded a bunch of my own rounds, but really don't think its too bright to shoot reloads until I can conclude whether the issue is the rifle or the rounds.....thoughts appreciated.

Fixed two posts below.
Last edited by Beecher Tool on 26 May 2013, 15:42, edited 1 time in total.

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Rapier1772
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Re: pushed in bullet

Post by Rapier1772 » 25 May 2013, 15:39

Breecher, those pic links aren't working, looks like you're using the wrong tag.
The code to paste is the IMG one, the one you're using is the HTML.
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fd57
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Re: pushed in bullet

Post by fd57 » 26 May 2013, 13:54

Beecher -

Did you use FnH magazines or the Chinese make believe mags? There is a difference and has been an issue of failures for others (the knock offs).

Did you cycle SS197 or SS192 to compare, to see if perhaps you can cycle other factory ammo without incident and narrow it to the FAE?

Beecher Tool
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Re: pushed in bullet

Post by Beecher Tool » 26 May 2013, 15:26

The mags are ALL FN Factory Mags...no copies...the lower and the LPK are the Premium PSA....the upper is a 2nd Gen. AR57 center. ...all I tried was the AE....I have SS192..but won't try that until I figure out if there is an issue with the bolt.....see pics below.....these didn't merely get pushed in they got the crap smacked out of them.

Image

Image

IrishRedneck86
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Re: pushed in bullet

Post by IrishRedneck86 » 26 May 2013, 18:06

I had the same thing happen to about half of mine Beecher some were just jammed back into the casing others were totally destroyed like yours. From what I could tell is that the rounds were on the right track, but then stopped short by slamming into the frame with about half of the neck slamming into the entrance of the chamber causing the massive damage to the casing. And again it was only with the American Eagle rounds

Beecher Tool
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Re: pushed in bullet

Post by Beecher Tool » 26 May 2013, 18:08

Thanks for the update.....did you try with SS192 or other ammo and get a consistently different result?

IrishRedneck86
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Re: pushed in bullet

Post by IrishRedneck86 » 26 May 2013, 19:18

Beecher Tool wrote:Thanks for the update.....did you try with SS192 or other ammo and get a consistently different result?
Yes in my previous post I pointed out at first I thought it was the mag since I was using an ATI mag but when I used the SS197 or SS195 in it it shot just fine except for trying to double feed with the same ATI mag but with my FNH mags she runs flawlessly except for when I use American Eagle in my AR57. Also as stated before the American runs great in my FiveSeven but hates the rifle.

As for any other type of ammo I dont have access to SS192 or other kinds unless I pay through the nose which right now would be kinda pointless to waste more costly rounds just to see if they function in my AR57 when I know it runs perfectly with 195 and 197 the standard consumer rounds.
Last edited by IrishRedneck86 on 26 May 2013, 19:21, edited 1 time in total.

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grimmond
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Re: pushed in bullet

Post by grimmond » 26 May 2013, 19:20

Have either of you noticed whether or not those rounds had glue residue in the case neck or if there was none?
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