Shooting ranges in Finland on the map: over 700 ranges for rifle, shotgun and archery, by municipality. Free to use, no sign-up and no paywall.
734 places in
Most shooting ranges are in Rovaniemi (15), Kuopio (14) and Oulu (12). The full list is below by municipality, and the map can be filtered to your own area.
The remaining places are on the map and in the municipality list.