If you are like me, you probably have too many of these water bottles lying around. And if you don’t, you can pick them up at yard sales or Goodwill for a couple bucks. Rather than toss them, I decided to store some 22 lr in them. Between the two bottles, they held right at 800 rds. They are air tight, water tight and resistant to temperature changes, so the ammo should be well stored. And if you go hiking or boating, your ammo is safe.