Good idea IF YOU LIVE IN THE EVERGLADES !

I have fired ammunition that is more than 50 years old (esp. .22 and 12 ga but war surplus as well) that performed just fine but was stored in "cool, dry" conditions.

One might spend more in vacuum sealer bags and burned out sealers than the perceived benefit.

OG

Helico,
While you do have to worry about the shifty sand's abrasion and the oils that get brought up in floods, unless you're burying or storing for a long time in grab-and-go sizes, skip the food saver.
You're not going to be there long enough for issues.

A bigger issue is to wear gloves if you're reloading for long-term storage where you are.
Your fingerprints carry oils that will, in fact, eat holes over a few of years. You can use a silicon cloth or old t-shirts to wipe ammo and stick it in a Whataburger pickle tub that has plumber's tape over the threads (with or without a rice satchel or a music store desiccant) to protect cartridges on your shelves and in your attic if they're going to be there a long time.

And don't leave metal-case ammo in any speed loops, especially leather but the heavier Neoprin type, too. It's a matter of just MONTHS before they corrode where you are (and as far north as MD and VA, at least).

You also want your shotgun shells stored on their sides (the way the box/case sits in the store, flap to the top), because your even more susceptible to settling from pressures there.
While I keep cases and boxes of shells in my truck again now, for years, with the below-freezing to 110+ temps, and they're fine, just 9 months in the daily 50-degree variable temps and higher pressure changes during storm season was enough to start seeing powder loads separating from the primers in the cases that were stored on their sides there. All kinds of issues that can crop up from that. (It was different batches, different manf., not just a bad lot or cheap ammo).

We keep our ammo in clean/unused paint cans. They only cost a couple dollars and seal tight. Storage can be stacked and they are easily marked and easily transported. This we learned from a old war veteran.

I keep all of mine in military surplus .50 cal ammo cans. you can get them for about $10.00 in vancouver and as long as the rubber seal is good and you have some desicants in it the can the ammo keeps quite nicely.

Mylar is another good option for ammo storage, or even as a 2nd barrier (multi-barrier approach)

Paint cans are great for storing many things. Save the label off of your old paint cans to camouflage the contents of the secret storage can. Just remember the old cans in my basement only have old paint in them. 😉

I use the military cans... I like the 50 call for my shotgun shells as they fit nicely. And I use the 5.56 nato for my handgun ammo. Never had a problem. If it's good enough for the military... It's good enough for me.

I just picked up a couple of these bad boys today as well... Sweet.

I use the military cans... I like the 50 call for my shotgun shells as they fit nicely. And I use the 5.56 nato for my handgun ammo. Never had a problem. If it's good enough for the military... It's good enough for me.

I just picked up a couple of these bad boys today as well... Sweet.

put a few dessicants inside the cans and you have long term ammo storage.

Yeah, I buy them in bulk... Throw them in with the Mylar bags in the pails when I prep rice and beans and such. Have larger ones in my gun safes as well.

Where are you getting your bulk packs? I would like a new source.

Any thought of storing ammo in a vertical position? I want to fit a couple of more boxes of my .40 cal into my 5.56 cans...