I like the Federal Automatch 40 grain stuff, but it's incredibly dirty. The copper washed stuff was clean and I could shoot a whole box with out having to clean the weapon. I have to stop and clean the gun every 100 rounds or so with the automatch or it will start malfunctioning...
I ordered a couple on the chance they come through.
Thought others may be interested:
http://www.shadowopsweaponry.com/products/181-dpms-ar-10-lower-receivers-so-308d-elite-308-win-sniper-rifle.aspx
Your custom logo laser engraved included in price on the item below...