Calling All Handloaders

Let's hear your favorite .223 handload recipes. I'm specificly looking for ideas for 3... one 50-55 grain standard load... one 40 grain fastball (remember this is going in an AR so not to fast!)... and one 75-80 grain long range/high wind hitter.

Of course my primary meal will be Lake City XM855... but still... I can't help but wonder at what possibilities are before me. Lets here 'em.