Wis. Stat. § 29.312: Rules regulating the sighting of a firearm.

(1) In this section, “immediate family” means persons who are related as spouses, as siblings, or as parent and child.

(2) The department may not promulgate or enforce a rule that prohibits a person from sighting a firearm or airgun on land owned or leased by that person or a member of that person’s immediate family during the 24-hour period prior to the opening date for hunting deer with firearms in any area where there is an open season for hunting deer with firearms.