6mm ARC specific reloading equipment

[Bassfish1952]

If you keep it in a cool dry place, o... 10-15 yrs or so... heat and humidity are the enemies of powder, primers too I reckon.
Moral of the story is, don't keep it in your garage or attic.  On a shelf in the basement is good, if it's a dry basement, if not then suggest you get a dehumidifier.
My bsmt is nice and cool and dry, pretty stable environment.

I store my ammo in my Florida room next to my office desk in a gun cabinet A/C on all the time (This is Florida  ) not more than 1,000 primers and 1 pound of powder at a time so that should be safe. 
I'll go ahead and buy my powder and primers then 


Thanks