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9/9/2018 10:51:11 PM EDT
I witnessed my friend shooting his POF today have a kaboom using Frontier ammo. This is the first time I have ever seen this happen in an AR15 type rifle. It blew out the mag and part of the bolt carrier. Luckily no one was hurt.
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9/9/2018 10:52:20 PM EDT
[#1]
Wow. Tagged.
9/9/2018 10:53:30 PM EDT
[#2]
Over charged ammo......
9/9/2018 10:53:49 PM EDT
[#3]
How'd it get the berries above the twig?  How'd it blow the carrier apart when the bolt is still locked?
9/9/2018 10:54:05 PM EDT
[#4]
Quote History
Quoted:
Wow. Tagged.
View Quote
9/9/2018 10:54:40 PM EDT
[#5]
Here are a few empty cases we found after the Kaboom.Attached File
9/9/2018 10:56:31 PM EDT
[#6]
Is probably give hornady a call.  Pretty crazy for it to push primers all the way out.
9/9/2018 10:57:04 PM EDT
[#7]
Quote History
Quoted:
Here are a few empty cases we found after the Kaboom.https://www.AR15.Com/media/mediaFiles/126115/20180909_215804-666944.JPG
View Quote
Yikes.
9/9/2018 10:57:11 PM EDT
[#8]
Wow! Haven’t heard of frontier before, are they remanufactured?
9/9/2018 10:59:02 PM EDT
[#9]
Wow
9/9/2018 10:59:25 PM EDT
[#10]
Quote History
Quoted:
Here are a few empty cases we found after the Kaboom.https://www.AR15.Com/media/mediaFiles/126115/20180909_215804-666944.JPG
View Quote
Holy shit!
9/9/2018 10:59:37 PM EDT
[#11]
PSA is selling that ammo right now.
9/9/2018 10:59:41 PM EDT
[#12]
Perfect, my work rifle is a POS, i mean POF...fuck

eta; cause spelling
9/9/2018 10:59:54 PM EDT
[#13]
Another pic
Attached File
9/9/2018 11:00:00 PM EDT
[#14]
Quote History
Quoted:
Wow! Haven’t heard of frontier before, are they remanufactured?
View Quote
Hornady's "budget" line of ammo.

Link to gel test, right here on arfcom.
9/9/2018 11:00:16 PM EDT
[#15]
Well, shit. I've got one of the 150 round boxes of that stuff
9/9/2018 11:00:42 PM EDT
[#16]
In before it's because piston guns "shit where they eat."
9/9/2018 11:00:45 PM EDT
[#17]
Had a friend that was having a ton of issues with his new Springfield Saint AR-15 and Frontier (but LC branded?) ammo. We're still not sure if it was the rifle, the ammo, or both. Basically had a lot of FTE/FTF issues, blown primers.. primer debris would get stuck in the trigger assembly area and impede trigger function. Charging handle would get stuck and we'd have to use a multi-tool to force the bolt back and eject a chewed up fresh round. Happened every range trip after 2-3 magazines.
9/9/2018 11:02:39 PM EDT
[#18]
I was actually talking to my friend about buying a case of this stuff before his rifle blew up. I am not going to now.
9/9/2018 11:03:50 PM EDT
[#19]
Quote History
Quoted:
Here are a few empty cases we found after the Kaboom.https://www.AR15.Com/media/mediaFiles/126115/20180909_215804-666944.JPG
View Quote
Now that's some hot rounds.
9/9/2018 11:05:35 PM EDT
[#20]
Fucking piston guns.

Not really. Anyway... Hornady is usually higher pressure stuff, especially in a tighter gun.

My LMT MWS pops or partially pops primers in all Hornady stuff.

But ya... not sure what's up with this stuff or gun. Wrong powder? Compressed?
9/9/2018 11:06:38 PM EDT
[#21]
Quote History
Quoted:
How'd it get the berries above the twig?  How'd it blow the carrier apart when the bolt is still locked?
View Quote
gas system pressure?
9/9/2018 11:07:03 PM EDT
[#22]
How many rounds through that rifle?  Did you have problems with blown primers with other types of ammo?
9/9/2018 11:07:09 PM EDT
[#23]
Another picture of a spent case up close. Attached File
9/9/2018 11:08:39 PM EDT
[#24]
I always like to check fired casings when shooting a new batch of ammo.
This is why. I know it is a little paranoid, but it has saved me a few times.
9/9/2018 11:09:30 PM EDT
[#25]
Quote History
Quoted:
Another picture of a spent case up close. https://www.AR15.Com/media/mediaFiles/126115/20180909_221036-666954.JPG
View Quote
Wow. Serious over pressure signs.
9/9/2018 11:09:32 PM EDT
[#26]
Quote History
Quoted:
How many rounds through that rifle?  Did you have problems with blown primers with other types of ammo?
View Quote
My guess is under 1000 rounds through the rifle and he has never had a blown primer before this.
9/9/2018 11:10:42 PM EDT
[#27]
Quote History
Quoted:
Well, shit. I've got one of the 150 round boxes of that stuff
View Quote
Same
9/9/2018 11:12:25 PM EDT
[#28]
I wonder if it is due to a loose primer from a previous round up in there. Usually they fall down and jam the trigger.

ETA jeez look at that ejector brass flow. Hot loads and a primer in the wrong place, dunno.
9/9/2018 11:12:49 PM EDT
[#29]
POF has a past history of tight chambers. Does your friend have access to a go no go gauge?
9/9/2018 11:13:14 PM EDT
[#30]
In on 1.

Glad no one was hurt.

Call Hornady
9/9/2018 11:13:31 PM EDT
[#31]
Perhaps you could share the lot number in case anyone else here has some of that stuff.
9/9/2018 11:14:08 PM EDT
[#32]
Quote History
Quoted:
Wow. Serious over pressure signs.
View Quote View All Quotes
View All Quotes
Quote History
Quoted:
Quoted:
Another picture of a spent case up close. https://www.AR15.Com/media/mediaFiles/126115/20180909_221036-666954.JPG
Wow. Serious over pressure signs.
Yeah so much this.....

Bad ammo was hot hot hot ammo !!!
9/9/2018 11:16:50 PM EDT
[#33]
Quote History
Quoted:
Perhaps you could share the lot number in case anyone else here has some of that stuff.
View Quote
Lot number is on the last picture in the opening post.Attached File
9/9/2018 11:17:16 PM EDT
[#34]
Please post pics of the lot#..should be on the box or inside the flap...
9/9/2018 11:18:28 PM EDT
[#35]
Quote History
Quoted:
Same
View Quote View All Quotes
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Quote History
Quoted:
Quoted:
Well, shit. I've got one of the 150 round boxes of that stuff
Same
No issues with mag I ran through it today, but I've got to admit I'm worried about the rest of it now.
9/9/2018 11:20:01 PM EDT
[#36]
Too hot!
9/9/2018 11:21:07 PM EDT
[#37]
Too much or wrong powder or bad headspace right, what else could it be?
9/9/2018 11:22:25 PM EDT
[#38]
Isn't Frontier Hornady projectiles made at Lake City as a joint venture?

Edit:Here is just one article claiming that. That begs the question of how is Lake City screwing up so bad?
9/9/2018 11:22:43 PM EDT
[#39]
Huh, and some guy told me a kaboom with a pmag would cause it to splinter into a million pieces like a frag grenade.
9/9/2018 11:23:25 PM EDT
[#40]
We looked at all the other ammo cases that were fired through it and they were fine.
9/9/2018 11:23:47 PM EDT
[#41]
Quote History
Quoted:
Isn't Frontier Hornady projectiles made at Lake City as a joint venture?
View Quote
I thought that was the case.
9/9/2018 11:26:10 PM EDT
[#42]
Quote History
Quoted:

Wow. Serious over pressure signs.
View Quote
I concur.

Primer pocket blow out, and case heads look
9/9/2018 11:27:37 PM EDT
[#43]
Quote History
Quoted:
Isn't Frontier Hornady projectiles made at Lake City as a joint venture?

Edit:Here is just one article claiming that. That begs the question of how is Lake City screwing up so bad?
View Quote
You are correct I was about to post the same thing.  Hornedy bullets loaded by Lake City.
9/9/2018 11:28:02 PM EDT
[#44]
I was telling one of my other friends to be careful using the Frontier ammo because I had seen him use it before. He just texted me this picture. Attached File

This was shot out of a Stag.
9/9/2018 11:31:53 PM EDT
[#45]
Glad your friend is ok.
9/9/2018 11:32:15 PM EDT
[#46]
Quote History
Quoted:

Lot number is on the last picture in the opening post.https://www.AR15.Com/media/mediaFiles/126115/20180909_215113-666962.JPG
View Quote
What's the bullet weight? 64+ grain?

I'm thinking out loud but I'm wondering if they accidentally kept the same powder charge for 50 or 55gr projectiles when they switched to heavier projectiles, or alternately, didn't completely clear out the powder dispensers from a switch from fast burning powder to slow burning powder.

I would've expected better from the Lake City plant.

Edit: I just saw your friend's picture you posted. I'm lost with what to think. I have a hundred guesses to the cause, but pressure testing by quality control must be very few and far in between for the Frontier product line.
9/9/2018 11:32:29 PM EDT
[#47]
Quote History
Quoted:
Here are a few empty cases we found after the Kaboom.https://www.AR15.Com/media/mediaFiles/126115/20180909_215804-666944.JPG
View Quote
Wow!
9/9/2018 11:33:06 PM EDT
[#48]
Quote History
Quoted:
What's the bullet weight? 64+ grain?

I'm thinking out loud but I'm wondering if they accidentally kept the same powder charge for 50 or 55gr projectiles when they switched to heavier projectiles, or alternately, didn't completely clear out the powder dispensers from a switch from fast burning powder to slow burning powder.

I would've expected better from the Lake City plant.
View Quote View All Quotes
View All Quotes
Quote History
Quoted:
Quoted:

Lot number is on the last picture in the opening post.https://www.AR15.Com/media/mediaFiles/126115/20180909_215113-666962.JPG
What's the bullet weight? 64+ grain?

I'm thinking out loud but I'm wondering if they accidentally kept the same powder charge for 50 or 55gr projectiles when they switched to heavier projectiles, or alternately, didn't completely clear out the powder dispensers from a switch from fast burning powder to slow burning powder.

I would've expected better from the Lake City plant.
55 grain FMJ
9/9/2018 11:34:49 PM EDT
[#49]
Glad that I don't have to worry about over pressure being an issue, I'm poor and shoot Tula.

And glad no one was hurt.
9/9/2018 11:34:52 PM EDT
[#50]
That's crazy it was blowing crimped primres.

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