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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/18/2011 at 17:35
MADMATT View Drop Down
Optics GrassHopper
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I've got on old tin of IMR 4350 that i would guess is at least 15 years old.
does it have a shelf life?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/18/2011 at 19:55
ckk1106 View Drop Down
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I don't think so as long as it has been kept dry.  
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/18/2011 at 20:01
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 +1  And kept in a low humidity environment.
 
 I'm GLAD IMR got away from metal containers.  I had to pitch a previously unopened can that when I opened it was rusted inside.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/18/2011 at 23:13
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Should be fine.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/19/2011 at 03:07
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+1
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/19/2011 at 07:18
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X = 180 Y = 90 (X+Pyro)+(Y-Pyro) = ?

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I currently have a 8 lb can of IMR 4831 that was probably 30 years old, that was unopened. I opened it, and have been using it with satisfactory results.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/19/2011 at 08:48
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OT TITAN

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ive got a can of imr 4350 thats at least 30yrs old too. i use it from time to time, i wonder though if the formulation has changed over the years though. i wonder if im loosing out on some performance because it is so old.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/19/2011 at 22:50
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I have some old as dirt powder as well. Some of it is pushing 30 yrs old. (I store it in an old chest freezer)

It keeps pace on the chrony with the newer stuffCool

That being said I reload the older stuff to plink with, and load the newer manufacture powder as my hunting loads.  I've yet to have a misfire/hangfire with either.


Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/21/2011 at 12:03
MADMATT View Drop Down
Optics GrassHopper
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what does "+1" mean?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/21/2011 at 12:10
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that they agree with the post just before theirsWink
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/21/2011 at 12:12
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+1, means they agree with the previous poster. Be warned though, I'm no internet expert.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/21/2011 at 12:15
MADMATT View Drop Down
Optics GrassHopper
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thanks for the input.
 
I'm new to the internet lingo.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/26/2011 at 19:22
Alan Robertson View Drop Down
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Some time ago I went binge cleaning my four- car shop and found an old ammo crate just filled with cans of 296, N-201, etc. I think I must have lost track of that crate during a move in 1981. One can of 4198 is marked $10.50 and I'd dated it 6/'80 and Winchester stopped making 296 in the 70's (they make it again now, thanks Winchester.)
One 1/4-ful can of IMR4895 has a price tag $7.95 on it and that would probably date it mid 70's.
Prices had really jumped in the late 70's... Thanks Jimmah Cahtuh. (I know, here we are again.)

That old crate has definitely been in this non-climate- controlled garage for my entire 14yrs at this address and who knows how it was kept elsewhere. 
Every single can still has 'the smell' and look of good powder and I've been loading it ever since.
There was also a large cache of primers in various flavors and they are all just fine, too.
An old paper Unique 'can' is even rusting on the metal ends, but shoots just fine and is just as dirty now with light loads as it was then.

As long as it's been sealed against moisture and still has the characteristic smell of good powder and isn't changing color, your IMR4350 should be good to go.

Ps Don't ever get a 4- car garage. You won't believe what a pack rat you'll turn into.
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