[glock rocks]

Shoot what’s popular and readily available - 9mm, .40, 5.56, 7.62, 12ga.

If the other shoe drops, there won’t be a Wal-Mart open.

[Ancient Man]

Most big box stores don’t stock the best self-defense ammo like Federal HST LE/Tactical and Speer Gold Dot. The best source of defensive ammo (and bulk range ammo) is online purchasing. It’s far cheaper and readily available. And, it’s delivered to your doorstep.

[IamConservative]

Shoot what’s popular and readily available - 9mm, .40, 5.56, 7.62, 12ga.

If the other shoe drops, there won’t be a Wal-Mart open.

Sound advice IMO. More likely you will be bartering for ammo from a fellow survivor than buying it at Wal-Mart. I would also recommend your AR is a true 5.56 so it can chamber .223 and 5.56.

[ebshumidors]

Have arms chambered in what the local LEO and military uses.