[bill k]

It really depends are the type of ammo you're talking about. It it's bulk ammo, ammo in boxes etc. the mil surplus are fine. If you're talking match rifle, reloads, etc I use case guard cases from midway USA.
These boxes take the pressure off the tip of the bullet. For plinking it doesn't matter, but for accuracy, it prevents the tips from wearing down. It's something you should be aware of.