In case it doesn't get mentioned some other way, these matches are pretty cool, but not too intimidating (no running 3.1 miles between shots, or whatever):
http://www.marksmanshiptrainingcenter.com/Store/Events/FriendlyFire_2012-11-03.html
http://www.marksmanshiptrainingcenter.com/Store/Events/FriendlyFire_2012-11-03.html