On thing the southern district of the peoples republic of new jersey is blessed with is an abundance of played out pit mines, sand for the glass industry, clay for the bricks that built Atlantic City, and bog iron that was forged into Revolutionary War cannon balls. They made for great places to shoot as most were off the beaten track. Unfortunately, they were also great places to dump toxic waste, you learn quickly not to shoot certain barrels. After I turned 18 my friends and I would load up much like the OP (pre- ban) Me with my CAR-15, Chuck with his M-1A and Greg with his Mini-14 and a coupe hundred rounds of ammo each. Fun times with good friends.