Don't ship ammo in a baggy or plastic wrap. They have a magic way of shaking loose from stuff like that. Pack as tightly as possible. (They're going to get you for weight and box dimensions.) Must be marked with an ORD symbol (diamond)... you can buy the stickers on Amazon for a few dollars. Some UPS hubs will still let you draw it on, others won't. (Technically, their auditors say it shouldn't be drawn, but it really comes down to the clerk you get.) Shipping 2-3 boxes from Virginia to Texas usually runs about $12-15 dollars.