The ammo in question has been repackaged (probably thanks to NRCAN

) and is in little cardboard boxes of 20 rounds each inside a wooden crate that isn't near the quality of the old Czech crates. It's a rough wood crate that has tongue & groove top & bottom with lots of cracks & gaps. The crate would have been fine if the ammo was still in it's original spam cans but it isn't!

The ammo is not sealed in plastic either. It's not sealed from the atmosphere at all & that's the problem. Humidity in the air WILL eventually make it's way into the crate & through the flimsy cardboard. I suppose in most cases the worst that would happen in the short term is the cases might tarnish somewhat and it would take allot of moisture to spoil the ammo so I'm probably just being anal but it wouldn't be the first time I've been accused of that!

It also depends where you are and where you store it. If you have somewhere cool & dry with low relative humidity then it's probably not an issue. I'm in SW Ont and the humidity here can be stupid sometimes since we're surrounded by the Great Lakes. By placing in a surplus ammo can with a rubber gasket it should be safe & nice & shiny for decades.

Hope that helps!