[ozo]

Whichever method you use, remember....
It's not just the container, it's the location of the container.
Condensation can ruin your ammo.
For those who wish to bury out and about, it is very
hard to avoid condensation from the temperature changes,
and very strict precautions must be adhered to.
One being the depth, kept below freeze table.
Extra desiccant [silica gel, kitty litter, basement dry, etc.]
is a must.
Best results also if you are able to check on it occasionally.
Alas, the best storage environment would be airtight, dry, cool,
and temperature controlled.