Iowabuck,
yes, I just bought one about a month ago. It was hard to part with about $800 bucks, because I wasn't sure if it was worth the $. Well, I took the chance, and I couldn't be any happier!
I bought the Bushmaster XM15-E2S. 20" bull barrel, flat-top version. I mounted a Tasco World Class Plus 4-12 X 44 scope.
Accuracy so far is good, to say the least. At 100 yards, I have fired 3 groups so far. The 5 shot groups measured, 7/8", 7/8", and 3/4". I love the gun, it is everything that I hoped. Without shooting these groups myself, I would hardly believe it. I have always wanted a semi-auto that would shoot sub-MOA. Try Bushmaster, I think you'll be more than happy.
PS- don't be alarmed by the suggested retail price set by Bushmaster. Several gunshops sell new Bushmaters for a couple hundred less. Figure about $800. Give or take, depending on model. Mine is the chrome-lined bore, they claim that the non-chromed barrels are more accurate, but don't last as long.
Try this website;
http://www.gunblast.com/Bushmaster_Varminter.htm
Mainehunt