I lived in Sedalia for about a year and a half, 1979 - 1980. When I first arrived the slower pace kind of drove me crazy however it wasn't long before I settled into the routine. Looking back I've never felt like I had as much time in my life. I liked Missouri and it's people very much.
I fell in with a group of local black powder shooters thru the Plainsman Gunshop run by "Black Hat Smith", great folks. The range we used was private belonging to three brothers as I recall. We shot once a month but if you were part of the "club", The Upper Ozark Mountain Men, the range could be used anytime. I had a lot of fun there.
I last visited Sedalia in 1996, Black Hat Smith and his gunshop were still in business. I stopped in for a visit and was immediately recognized after 16 years. Sadly the club has disbanded some years before this visit. I'm sure you'll find a good group to shoot with wherever you land. Check out the fishing and small game hunting too.
Good luck.