Where are you driving from?
I went to the Wilbur Wright range quite a lot last year and the year before, but I got a membership to the Monroe Township club back in January, which is a little closer than half way between Muncie and Wilbur Wright.
Wilbur Wright is free, but from my experience, the people that go there aren't exactly safe. There's no real RO to regulate the range, which creates does create some close calls.
The DNR guy(s) that hang around are pretty cool though, and I haven't had an experience that would say they aren't Black Rifle friendly. The Fudds however will give you some odd looks, but there probably won't be that many at this time of year.
There's a really nice club in Jonesboro that has a 250yd range, but I've got no idea what the dues are. And Monroe, which I belong to, has a 100yd range.
If you do go to Wilbur Wright, make sure you keep the card on you until you leave.
www.in.gov/dnr/fishwild/publications/wilbur.htmarchive.ar15.com/forums/topic.html?b=8&f=30&t=205359ETA: Keep an eye out for "Glock-boy" and some dude that opens fire on a cold range while you're walking back from checking a target. They suck.