If you are looking for suggestion, the most important thing I look for in a public indoor range is a full time range officer. I will walk out of any range that rents a gun to a couple of video game Rambos and turns them loose to sweep the whole the firing line while trying to figure out how to use it.
Keep it safe, or shut it down.
My second consideration is the air quality.
If you run a safe range that I can visit without having black rings around my nostrils, I'm there.
No offense, but this idea has been floated a million times. Everyone serious enough to actually start talking to the people in charge of approving such a place has figured out that it just isn't going to get approved.
Good luck though...
Then go juuuust outside the county line.
I've visited Indianapolis-area indoor ranges and I've noticed the long lines and lack of options.
I'm currently exploring an opportunity to open a safe, fun indoor pistol/rifle range in northeast Indianapolis.
I would be interested in any feedback from you. What options you would like to see (paper target carriers? Static or knockdown reset steel targets?) If you live in the area how often would you go? What are issues you have with other indoor ranges? What do you want in an indoor range?
Erin R.