The folks making a stink in that article bought their homes in 2001 and 2010 respectively. All public records. Gun club has been there since 1956. Who's in the wrong there?
Will state that while Minnesota has a law in place protecting existing gun clubs, in practice it is poorly written and nearly impossible to interpret.
A local gun club recently did sound testing, and has elected not share the test results (with the local zoning authority) to pursue an expansion of hours to deal with the expansion needed for the high school league. Reason: the background noise is already above the allowed noise level for the gun range, and the law gives no way to deal with that. In that case, the club has been operating since the '60s, but there are several neighbors bending the ears of commissioners (all of whom moved in well after the club started operating).
Same folks who think they own their view. Or don't like airplane noise but don't want to live too far from the airport.