The ISRA range is extremely nice. They've made quite a few changes over the last 5 years, and really updated the place.
I just rejoined after a 4-5 year hiatus, and was pleasantly surprised. They have long-range plans to make the 300 yard range into a 600 yard range, too. That would be great if they're able to do it.
There is also an archery range, and an informal trap area for shotgunners. In addition to those, there is a benchrest range with concrete benches that are rock-solid. A 100 meter range is next to that one. And then there is the High Power range, which has 200 and 300 yard firing points.
There are warming/cooling shacks depending on the weather, and bathroom facilities in several places.
I'm not sure if it's within an hour of Naperville, but it's probably close to that.
May 19th, next Saturday, they're having a "Savage Day" at the range. You could show up and check it out for free, and maybe shoot some neat Savage rifles as well.