Federal American Eagle Ammunition 223 Remington 50 Grain Jacketed Hollow Point Box of 20 in stock at $10 and change with a limit of 5 boxes --- 100 rounds at about $51 isn't to shabby compared to what we've been seeing,

http://www.gunbot.net/

You might find this useful. There are actually several engines, but this one seems not to serve as a shill for a few suppliers. So far, anyway.

Sam