I was down at the FMC range last week, there are a couple posters advertising an AR15 (223 or 6.8 only) 100 yard off hand shoot.  I think it was a benifit for the boy scouts....should have read it better.
If I recall correctly it is $3 a target, 10 shots off hand at 100 yards....there was a pay out for the top 3 shooters.  May 15th....I think

If there is anyone intersted in it I can go back down there and get some better info.....I dont mind going to the range after work at all