The PMAA Range is also great, yet not a mention.
Thats the range I used to go to when I lived in Sugerhouse. Its just up the canyon a few minutes. Take 80 East and then get off on the East Canyon Exit. It's right there and you can't miss it.
The let you shoot anything there except shot sells. I've been there when SLC Swat pups were there plinking off with lots of assorted HK weapons and they even offered to let me pull off a few from what looked like the oldest MP5 in the world. The range has no problem with .50BMG rounds - Just dont use tracers unless its raining real good. They dont want a fire.