This month's Handloader (Oct 2009) is packaged with a 12 page booklet titled "AR-Tactical Loads".
It is a loading manual for all the cartridges the AR-15 is available in. There are actually 8 pages of load data.
The data is from http://www.loaddata.com.
It appears that this web page is a subscription service, so here are all the 450 bushmaster loads you can't see without paying, printed out for you.