For anyone living in Mass (I feel your pain), the Hanson Rod & Gun Club is having it's annual Machine Gun Shoot Saturday, May 15th. A portion of the proceeds go to charity, usually the Shriner's Burn Institute in Boston.
The event is open to the public, and all the fun toys should be out. There will be a MiniGun, .50 M2 HB, M16's, AK's, Uzi's etc. Entrance is $6.00 and the price varies for what you want to shoot. Starts 9:00 am.
Go here for more info www.hansonrodandgunclub.org/