Some powder i forgot about sitting in LEE hoppers. Still good?

[Trevillian]

I forgot about two lee hoppers about half full of powder. I know what each are. Just haven’t loaded for those calibers in a long while.

They have been sitting on a shelf in the reloading room which has a dehumidifier, with the factory lee lids on the hoppers.

Any reason to be wary? Safe to dump back into factory container? Keep separate? Cull altogether?

 

[Tailhunter]

Unless it smells super rancid, yes keep.

 

[Catfish]

I would test it:
Does it look clumpy or discolored?
Does it smell bad?
Does it burn?

I would still keep it separate from the bottle though. got any old pill bottles? i use those all the time as small powder containers.

 

[nbkky71]

I accidentally left a hopper full of powder in my Dillon 550b for about 6 months once. I had been loading up 223 plinking ammo, put the cover on it overnight and then forgot about it. Oopski...

When I came back to the press the powder seemed fine, so I loaded up some more ammo and it all went BANG without incident.