I loaded in an outdoor metal building for 5-6 years and temps here in SC I’m sure got down to 20 degrees some nights and I know at least 100 in the metal building a lot. I never once saw any difference in performance more than a slight drop in velocity in cold weather but that’s to be expected.I have an opportunity to buy a reloaders estate there is a fair amount of powder the powder was moved from climate controlled to an outside shed a yr ago where its has been exposed to to temps from below freezing to 120 degrees. I know ill have to shoot this stuff across a chrono to check its true consistency and viability. But do any of you have experience with powder that has been stored like this and what is your opinion on its viability or lack of?
Thanks for replies!
I would try a few loads with a powder thst you now have on hand and if the performance is close I’d not hesitate to use it.