To clarify...
I am going to bring 2 or 3 steel plates to hang at about 50yards, 100yards, and 375yards.
I also have tennis balls (fun to shoot, they fly up when you hit them for the most part).
As a note to all - Briar Rabbit has a Rifle range that stretches out to 375 yards with areas to hang steel per 50yard increment (but some of the wires to hang stuff from are dead). I normally bring 1-2 improvised U-shaped contraptions made from galvanized steel to press into the group with the steel hanging from the top bar. Briar Rabbit also has a nice pistol range with steel targets that drop when you hit them.