I'm going to NM soon for business. Buddy of mine says 22 LR is easy to find. I want to bring back a few boxes but have some concerns. I plan on buying a few boxes and putting them in my checked bag. I read that I cannot have more than 11 lbs of ammo including the container. I plan on tying them up in the bag from the store and leaving them in the original boxes. I know I have to tell them when I check my baggage. Does this sound correct? Also, how much does a 500 round brick weigh? I would guess 5 lbs?