[Raellus]

Does anyone know roughly how long explosives in things like land mines remains viable? Is there an expiration date, or does the stuff last forever? Similarly, is there a best-used-by date, after which the explosives become less... explosive (or more unstable, perhaps)?

I reckon it's a good long while, given how carefully unexploded ordinance from WWII is dealt with when an antique air-dropped bomb is discovered during construction or whatever.

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