Chinese 5.56 spam can life

[randyhub]

So if you buy Chinese non corrosive ammo made in the 90's in sealed metal spam cans, keep dry, how long will it last?

Or do you buy newer manufactured ammo loose, and store it in sealed airtight poly ammo cases?

Which is better, and what will last longer?

Thanks

 

[Smcx]

I’d imagine it would be good for 100 years or likely double that.

 

[North of 7]

If spam cans are stored properly, I believe they should last longer than you. Powder may break down or turn bad eventually, not sure how long.

North

 

[bearhunter]

I believe the ammo packed in the sealed cans is packed with an inert gas????

 

[howard2]

I have 1938 dates 8x58R ammo that still doesn't seem to have any misfires. To be frank if stored correctly most ammo should have a indefinite lifespan. Obvious water damage is the main enemy of ammo.

 

[maple_leaf_eh]

Sealed and properly stored, it will likely last 75 or 100 years.

 

[gewehr76]

That ammo has more aluminum in the brass mix than copper. It will be brittle faster than copper prevalent brass. It will be still ok to fire, but reloading aspect of it will diminish the older the brass gets.
As long as the spam can is sealed, it will last long time.

Inspect the can if it has green paint around seam where you open it, it's indicator that even before surplussing this ammo. This was inspected for spam rust and if they already done one painting., second coat will not help.
That's why they surplussed it