Hi. I reside in the Frozen Tundra that is known as Green Bay.
There are only a couple of ranges here in the Green Bay area that I am aware of. DePere, which is just south of Green Bay, has the DePere Sportsman's Club. You can shoot rifle and pistol there. I believe you can shoot there without becoming a member, but I'm not positive.
Also there is the Nicolet Rifle Club, of which I am a member. However, you must be a member to shoot there. If you are going to visit often, you may want to become a member. It is about 10 minutes north of GB.
If you are into shooting trap/skeet and the like, there is the Brown County Sportsman's Club just north of GB. They do not shoot rifle/pistol, just clays.
I know you take Hwy 43 mostly, but if you take Hwy 41, there also some ranges in the Fox Valley area. The Fox Valley is about 40 minutes south of GB.
That is all I know. There are most likely some ranges north of GB, but I don't know anything about them.
Also, there is a Army/Navy Surplus store in GB. It is on Military Ave and Mason street if you are interested. Hwy 43 is about a mile from the store.
Good luck with your search. If you want some additional info on anything, let me know. I'll see what I can dig up for you.