How long is powder good for?

[Chance Love]

Ok, probably a stupid thing to do...I put some powder in a container in a storage unit about 3 years ago. Is it still good? The unit is not climate controlled.

[DarrellS]

If it does not have strong acid smell, it probably fine. I shot some ammo from WWII that was fine and went bang everytime.

[texag93]

I have powder that is 20yrs old, always kept climate controlled. Still goes bang.

[Keith]

I've got some in paper cans with metal top and bottom, that must be 40 years old. Never been climate controlled and never had any issues.

[Matteo]

I am loading some real old IMR4831 in 6.5x55 right now. I will let you know if I explode. heheh.

[Matteo]

Just load a few and invite your buddy to the range to shoot the first few of them. heheh. JK

[tgridley]

I still load some that is 20 years old and no problems.

[Jethro80]

good to know this stuff keeps well when taken care of. I hope the shortage improves soon!

[Osceola]

I'm loading some that has a $4 price tag on it so it must be old.

[sierracharlie338]

I'm loading some that has a $4 price tag on it so it must be old.

I have some powder marked with the same price lol

[rcjunky007]

Im loading powder from 1977. Shoots fine.

[duckmanep]

Found some in the old tin can that was in a shed a while back. It went bang.