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Posted: 6/29/2015 4:36:17 PM EDT
I opened up a box of what is supposedly new 75gr Hornady BTHP only to find this blue shit on the ammo. I've never seen this. Corrosion of some kind?
 Thanks for the help Title edited to conform to COC#1. dryflash3 |
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Posted: 6/29/2015 3:40:30 AM EDT
[#1]
The whole box, or just that one?
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Posted: 6/29/2015 3:48:04 AM EDT
[#2]
Corrosion! Pretty bad, too. I'd be concerned enough to contact the seller or Hornady about replacement.
Almost certainly, but not absolutely, it is due to improper storage conditions. Where has it been kept? |
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Posted: 6/29/2015 4:24:17 AM EDT
[#3]
I bout two cases of Guat 5.56 from AIM that had that all over it (it was advertised as such). Most of it worked okay the the worst one had a few fail to go off.
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Posted: 6/29/2015 4:39:02 AM EDT
[#4]
I figured as much, thanks for the replies. It's been sitting in a connex for a few months.
As far as the ammo goes, should the rounds without any corrosion be good to go, or would it be better just to burn it all as training ammo? |
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Posted: 6/29/2015 4:39:32 AM EDT
[#5]
Quote HistoryQuoted:
The whole box, or just that one? It's a couple per box of 20. |
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Posted: 6/29/2015 7:13:48 AM EDT
[#6]
IBTC,LOL
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Posted: 6/29/2015 8:11:04 AM EDT
[#7]
It's only 20 rnds; I'd wipe it off and shoot it; replace with newer stock if it's going to be "non-training" ammo.
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Posted: 6/29/2015 8:44:27 AM EDT
[#8]
Ammo cans...
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Posted: 6/29/2015 9:21:52 AM EDT
[#9]
Quote HistoryQuoted:
It's only 20 rnds; I'd wipe it off and shoot it; replace with newer stock if it's going to be "non-training" ammo. This Id just wipe it down with some really fine steel wool and shoot it up. |
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Posted: 6/29/2015 11:18:58 AM EDT
[#10]
If it's only a few, hand clean them. If more than a few, clean them in a vibratory cleaner with walnut media for half an hour or for however long it takes to clean them up.
Watch very closely for small pit holes. Also after shooting some of them, check for small pits. I'd shoot them, but I'd watch the whole batch closely. |
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Posted: 6/29/2015 11:21:57 AM EDT
[#11]
Quote HistoryQuoted:
It's only 20 rnds; I'd wipe it off and shoot it; replace with newer stock if it's going to be "non-training" ammo. I should have been clear: every 2 or so rounds per 20 are like this. There are boxes on boxes on boxes like this. We'll just burn it and order some more. We have plenty of standard ammo for "non-training" use, but I love me some Hornady. |
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Posted: 6/29/2015 2:23:17 PM EDT
[#12]
Moving thread as that is factory ammo, not a reloading topic.
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Posted: 6/29/2015 3:46:31 PM EDT
[#13]
Quote HistoryQuoted: Moving thread as that is factory ammo, not a reloading topic. |
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Posted: 6/29/2015 4:32:37 PM EDT
[#14]
I don't think the EE move was on purpose.
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Posted: 6/29/2015 7:14:25 PM EDT
[#15]
Looks like standard copper oxidation to me. I'd shoot it.
But, you probably have a fancy accuracy rifle with an SS barrel and any little deviation throws your shot off by 5 feet. Shoot it through a cheap AR. |
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Posted: 6/29/2015 8:17:06 PM EDT
[#16]
Personally... I would contact Hornady if you have a consistent amount of that corrosion.
Does anyone know what that kind of corrosion might do blasting down your barrel ? If you guys paid for factory fresh... I would truly prefer that.... rather than abusing my high dollar match rifle. |
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Posted: 6/29/2015 11:43:11 PM EDT
[#17]
Had similar on some reloads.
I pulled the neck off this one with my fingers. 
Trashed them all. 
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Posted: 7/5/2015 1:21:17 AM EDT
[#18]
Corrosion caused by deteriorated powder?
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Posted: 7/5/2015 4:34:44 PM EDT
[#19]
Quote HistoryQuoted:
Corrosion caused by deteriorated powder? I think this man is right. I would contact Hornady. |
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Posted: 7/5/2015 5:39:03 PM EDT
[#20]
Quote HistoryQuoted:
I figured as much, thanks for the replies. It's been sitting in a connex for a few months. As far as the ammo goes, should the rounds without any corrosion be good to go, or would it be better just to burn it all as training ammo? It not Hornady's problem. You need to store ammunition it a cool dry environment. A connex is typically neither. |
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Posted: 7/8/2015 3:53:33 PM EDT
[#21]
Your ammos got the herps, ship it to me and ill properly dispose of it
Just corrosion caused by moisture. I had some water get into a loaded mag once and put it away for storage, few months later i pulled it out and they were turning blue/green. Just use a little steel wool or tumble them in media, and youre gtg, i would shoot them as plinking ammo just in case though. |
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Posted: 7/8/2015 8:46:11 PM EDT
[#22]
I would caution against firing that. I broke the neck off of the piece of brass you see in my post with my fingers. It was extremely brittle. I don't know if the head of the case was brittle but I would not want to find out.
B |
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