Unopened boxes Lapua Brass -- Need to Worry about Corrosion?

[TTE]

I have quite a few unopened boxes of Lapua brass.
Any idea of how long they will remain in a useful state (not corroded beyond usefulness) ?

 

[tmwinds]

I have some.22 Hi Power brass that is probably 75 years old . It’s a little dull but still looks good. It’s been in the factory cardboard boxes all these years.

 

[CJ6]

I still have NEW 6mm Rem brass (Herters/Norma) from the early 70s that's still in great shape.

 

[Frankm]

Probably outlast all of us short of leaving it in the weather, running over it, smashing in dirt, snow, etc …

 

[jepp2]

Any idea of how long they will remain in a useful state

Probably beyond your children's lifetime. The only new brass I have seen any deterioration (not counting normal patina from age as deterioration) was some Remington new factory brass when they had the molded styrofoam trays. The brass reacted to one of the chemicals present in the tray. Above the tray the brass remained normal.

 

[tommeboy]

Paper can hurt brass if it was not washed enough in production. I have seen a lot of this happen with all makers. Most ammo is shot up right away is the reason you don't see more of it. If they are not getting corrosion already they should be fine. If they start to get spots on them put them into something else.

 

[dgeesaman]

Unless you live in a marina, nothing to worry about.