5.56 NATO, 50 to 85 cents
9X19 NATO, 50 to 75 cents
7.62 NATO, 65 cents to a dollar
For some idea of how crazy this market remains, bear in mind that a box of 50 common 9X19mm pistol bullets that would have cost you about 15 bucks a few monts ago will now run you about 25 to 38 bucks, plus the cost of shipping via UPS ground (ground is your only option for live ammo.
My experience is that our local retailers tend to lag in downward price corrections, so I expect prices to remain a bit higher with them at the moment (but haven't checked). Sooner or later they're going to get stuck with some ammo they've over-paid for as the market corrects, but I'm sure they've more than made their money already and will shrug off a small hit like that. Gun shows may offer some of the best (and worst) deals for some time to come -- as usual.
The market will undoubtedly continue to slowly cool until the gun prohibitionists hit the news feeds in a major way again. And that day is coming. So, if you're looking to cash in on a few cases of ammo you've got squirreled away and wish you hadn't missed the peak of the bubble, you may still get another chance in a short while. Me? I'm reloading a bit and letting my small stocks of ammo draw down. We enjoy shooting, and will enjoy it. If the Zombie Apocalypse were to arrive, there'd be plenty of guns and ammo scattered around anyway. Just remember to use your -- brrrainz!