Recently picked up this case of Yugoslavian .308 that was opened 6 months ago. Ammo pictured is typical of the boxes I've opened, some the cardboard boxes have some discoloration. If I transfer the ammo to G.I. ammo cans, How long will it keep? How much dessiccant should I put in the ammo can? Should I shoot it and not consider storing it? The guy I purchased it from said his bolt guns fired every round but his FALS had a few FTF. Is this typical of this ammo or was it just his FAL? Usually I educate myself prior to a purchase, that wasn't possible on this purchase. I hope I didn't waste $60 on it.