Gun shops - Hodag Gun & Loan (member here works there), Mel's Sporting Goods on Brown St downtown, L&M Fleet supply (similar to Fleet Farm, and they have lots of guns too). The Walmart here still sells long guns, and the Dunhams store has a big selection of handguns, rifles, shotguns. Hodag Gun, L&M, Walmart, and Dunhams are all at the same intersection on east Lincoln (Business Hwy 8). Mel's is downtown on S. Brown, and it's probably near the book store you're going to.
There's several good restaurants downtown on Brown St (CTs Deli, Pat's Tavern, Rhinelander Cafe & Pub, Bucketheads Sports Bar & Grill), and The Friendship House is at that same intersection on east Lincoln where Hodag Gun, L&M, Dunhams etc are. There's also a Culvers on Hwy 8, on the far west side of town.