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Geezerbiker · August 14, 2011, 03:30 PM

For the first time I have a can of what seems to be bad gunpowder. I decided on IMR 4895 for a load, I opened a new can, poured some into the powder measure and up came a cloud of fine brown dust. According to the Speer reloading manual, the powder is bad. Frantically, I checked all my other cans of powder and all are fine. I probably bought it 10 years ago so there's no returning it.

I've always stored my powder in original cans, in a plastic tub in my bedroom closet. While I'm sure my cans of powder cans have gotten warm but not expressively hot.

Anyway I'm curious, is IMR4895 more likely to go bad than other powders or is it more likely that it experienced over heating before I bought it?

Tony

August 14, 2011, 03:30 PM	#1
Geezerbiker Senior Member Join Date: March 20, 2011 Location: Willamina, OR Posts: 1,908	Bad powder For the first time I have a can of what seems to be bad gunpowder. I decided on IMR 4895 for a load, I opened a new can, poured some into the powder measure and up came a cloud of fine brown dust. According to the Speer reloading manual, the powder is bad. Frantically, I checked all my other cans of powder and all are fine. I probably bought it 10 years ago so there's no returning it. I've always stored my powder in original cans, in a plastic tub in my bedroom closet. While I'm sure my cans of powder cans have gotten warm but not expressively hot. Anyway I'm curious, is IMR4895 more likely to go bad than other powders or is it more likely that it experienced over heating before I bought it? Tony