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AR15.COM
4/20/2009 6:59:30 AM EDT
I went through my reloading supplies and found that I have boxes of primers over 10 years old, just checking to see if anyone knows how long the primers can be stored and used.  Also, found several cans of powder, that are over 10 years old, any thoughts on using the powder that has been stored.
4/20/2009 8:05:07 AM EDT
[#1]
If neither has been stored where they have been exposed to extremes of heat, or exposed to moisture both should be good for a very long time. If the primers look normal they should be fine and if the powder looks normal and has no red colored dust it should also be fine. I have a few not often used primers and small quantities of powder that are at least that old and they are fine.
4/20/2009 8:43:44 AM EDT
[#2]
I'm just getting in to the 40,000 primers I bought during the "primer shortage" of 1994. Haven't had any problems .
4/20/2009 10:01:29 AM EDT
[#3]
I've used primers at least ten years old, probably older.  No problems.
4/20/2009 3:56:26 PM EDT
[#4]
Quoted:
I went through my reloading supplies and found that I have boxes of primers over 10 years old, just checking to see if anyone knows how long the primers can be stored and used.  Also, found several cans of powder, that are over 10 years old, any thoughts on using the powder that has been stored.


Honestly, I would not use them under any conditions.  These guys do not know what they are talking about.  Give them to me, and I will dispose of them safely.  ;)

Seriously though, I'm down to 400 LR primers and they're like 15 years old and not giving me any problems.  I wouldn't worry about it at all.
4/22/2009 6:28:52 PM EDT
[#5]
I have some primers that are almost 30 years old, and they're still fine.  They have been stored in a controlled environment (sealed ammo can) during most of that time.
4/23/2009 4:51:37 AM EDT
[#6]
I have some old Herters primers in the wooden trays that I've used recently. They light off just fine.
5/1/2009 4:19:41 PM EDT
[#7]
I got caught with my pants around my ankles on this.  Haven't found any sm. rilfe in over a month.  Hopefully the makers catch up soon, as I refuse to pay over $100 per thousand that they are going for on Gunbroker.com