Shelf life of large rifle primers

I have 20 year old F210 Match primers, stored properly at dry conditions at room temperatures. Are they still as good as ever?
People are still shooting milsurp ammo from the turn of the century from random comm-bloc countries…I think if stored inside your house at room temp, they’ll last indefinitely. If you’re worried about ambient moisture, start sealing them up in .50 cal ammo cans inside your house. They will certainly last forever then.
 
These still work fine.
 

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