$20-$25 is common around here. Guy I used to deal with charged $15 for veterans or active duty military/LEO/firefighters but he must be having personal problems because he turned into a real butt so I don't use him anymore. Some shops charge ridiculous fees but I think they do so just to discourage people from using them. I have the name of a fellow around here who supposedly only charges $10 but he's on the other side of town so I haven't tried him yet.

Gunnery, gunnery, gunnery.
Hit the target, all else is twaddle!