... just some thoughts. Anyone here putting desiccant packs in their opened powder containers? For starters, I don't.

No. Just a dry cool environment around the closed can seems to be sufficient. I’ve shot powder that was 30+ years old and it seemed good as new. Well good as the last time they made it

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-Matt

I don't do it. I store my powder in a wood filing cabinet in my garage. Relatively controlled environment, dry and cool. Powder has always been good, even after many years of storage of partly used containers.

I don't. I don't know anybody who does for that matter.

I don't put anything into a can of my powder, since it might alter the chemical compound, some how.

I don't even put saran wrap on the top, to help keep out moisture.

It is good to go, right from the factory.

Not my powder but I vacuum pack my primers with one of those little desi packets like you’d get with new shoes.

I've never used any special storage techniques, but I have noticed old powder looses something. It's all went bang, but on the chornograph I've noticed some lose in velocity according to notes from the same powder load in the same guns.

Okay, you got me . . . why? They don't get packed that way by the manufacturer. I've got boxes of primers stored in their original packing for years and they perform fine.

You have powder sit around long enough to worry about storage conditions? You need to reload and shoot more. I fill a 1# bottle from the big keg, reseal the keg. In 2 weeks to 3 months the 1# bottle is empty, ready to refill.

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S&WHF 366

OCD a little lol. Really couldn’t tell you when or why. I guess powder came in a container which was/is air tight and the primers were just in a box. My basement, which is where the ‘Man Cave’ is located, isn’t climate controlled and I have a food saver so......

All my powders and primers are stored in ice chests. Never had a problem.

How often do you have to add more ice?

Didn’t know you need to keep them cold. Oh well.
Mine is stored in basement a bit damp but semi controlled temp.

No fight over this point of agreement. No magic or extreme measures necessary. I just snug the lid on each jug and keep them all in a temperature controlled area.

I think a lot of it depends on where you live.
I know my garage is a far from a controlled environment in SouthEast Texas with all the humidity. I keep all my ammo,guns and soon to be reloading stuff in in what the Wife calls my gun room which the previous owner had set up as a home gym.
I will however set up the new reloader in the garage and keep exposed unpainted steel wiped down with a little WD-40 and a cover.
The first signs of rust and I'll be reloading in the gun room.

When I really got into reloading I lived about 1 mile from the coast (So. CA). I stored my powder in a tin shed, no climate control. I moved to rainy OR and my house is about 1,000 yards from the harbor. I have kept my powder lids snug and stored in a cabinet. Lids on snug, no special storage. My oldest powder is around 28-30 years old and is still fresh and usable, same performance as when I opened the jug...

I totally agree completely! My problem is that I cannot keep up with you!!!

Handgun range, got you covered. Rifle range, not so much.

GOOD NEWS - Found a local range ~20mi vs the usual 30mi one-way trip. BEST part is... they have 8-10 ranges separated by vertical berms that limit specific shooters (4-6) to each range. BIG =!) They have LRO in typical EMS mode, in order to check for mental acuity mode. Interesting, when you already know what they are doing/attempting, it is NOT so intimidating.
However, new owners tend to dominate the cellphone posts complaining/praising same. Those that DO NOT, leave notes that THEY were treated "So Badly" and such. Little do they know/understand just how quickly those feelings/concepts could sweep and or corrupt our entire form of government. Hitler died in a bunker... We do not need that again. Just sayin'...

Just make sure what you toss in the microwave!

Nope.
I've still got some old Bullseye and a couple others in the cardboard pound containers used from back in the 80's.
All I've ever done is keep the caps on snug. Most of it's life it was kept in a garage. Still good.

The one thing I do is to sniff it occasionally and see if it smells funny.
Still doesn't so I still shoot it until it's gone.

I think primers are much more sensitive to climatic conditions.

Actually, I have powders which I've tried and set to the side in favor of another while working up specific loads. These shortages have nothing on me, and I've got some crazy recipes and all of my fingers.

I store my powder and primers in igloo coolers.

I'm no chemist, but I would wonder if the desiccant would have a chemical reaction with the powder ?

Probably few chemists know answer to that.

Just drawing moisture from the powder would alter its composition, as it is a listed ingredient. Adversely, I don't know.

All my powder and primers are stored on the shelf in my metal storage building converted into a reloading room. I have accidentally left the cap off a powder measure for as long as 2 months and seen no fifference in performance

I have some black powder in sealed metal screw lid containers, from when I shot black powder back in the early 70's. a friend told me to pour some out and see if it burns hot. I did so, and it ignited fine. I want to start BP again, any thoughts on this? Navy 36 and Walker 44 from then, plus H&R cav carbine bought back then too. Also a Pedersoli 45-70 Sharps, big heavy rifle, gets attention when I touch it off on a range among other shooters. Thoughts on my vintage FF and FFF? SF VET

Been reloading since the late 1960s. I’ve stored powder and primers in their original containers, in my house. Never did any thing special other than keep them at room temperature. Have had zero problems. Some of the powders got to be 15 or so years old.