I have some cardboard cans of Hercules powders dated to 1991 that are fine, one that might be older. I also have a can of IMR 4198 I recently bought that shows no signs of deterioration, it has a price sticker of $3.15, you can guess it's age. I've also got two cellophane wrapped cans of bulk smokeless, but I won't vouch for them.

Tim


who you've been ain't who you've got to be