A person with a felony conviction cannot legally own a muzzleloader in Wisconsin. State law defines a firearm as any weapon that fires a projectile by the force of gunpowder, and a black-powder muzzleloader fits that definition. Federal law treats traditional muzzleloaders as “antique firearms” and exempts them from the federal felon-in-possession ban, but Wisconsin has no matching exception, and the stricter state rule controls.
Why Wisconsin Treats a Muzzleloader as a Firearm
Wisconsin courts use a one-part test: a firearm is a weapon that acts by the force of gunpowder to fire a projectile. That standard comes from the 1994 Court of Appeals decision in State v. Rardon and appears verbatim in Wisconsin’s criminal jury instructions.1Wisconsin Court System. Wisconsin Jury Instructions – Criminal 1343
Muzzleloaders use black powder, which is a form of gunpowder, to propel a projectile. That is enough. It does not matter that the weapon loads from the barrel, uses a percussion cap or flintlock, or cannot accept a modern cartridge. If gunpowder drives the projectile, Wisconsin calls it a firearm, and Wisconsin Statute 941.29 bars prohibited people from possessing one.2Wisconsin State Legislature. Wisconsin Code 941.29 – Possession of a Firearm
The statute reaches more than people convicted of a Wisconsin felony. It also covers out-of-state convictions that would be felonies here, certain juvenile adjudications for serious offenses after April 21, 1994, findings of not guilty by reason of mental disease or defect, involuntary mental health commitments, and people subject to certain domestic abuse or harassment injunctions.3Wisconsin State Legislature. Wisconsin Statutes 941.29 – Possession of a Firearm
Why the Federal Antique Exception Does Not Help
Federal law under 18 U.S.C. 922(g) prohibits anyone convicted of a crime punishable by more than one year from possessing firearms or ammunition.4Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts The federal definition of “firearm,” however, excludes “antique firearms,” and 18 U.S.C. 921(a)(16) treats a muzzle-loading rifle, shotgun, or pistol designed to use black powder (or a substitute) and incapable of accepting fixed ammunition as an antique.5Office of the Law Revision Counsel. 18 USC 921 – Definitions That carve-out does not extend to muzzleloaders built on modern firearm frames or readily convertible to fire fixed ammunition.
Reading only the federal statute, a traditional black-powder muzzleloader looks lawful for a person with a felony conviction to own. In Wisconsin, that reading is wrong. Federal law sets the minimum rules. States are free to go further, and Wisconsin has. A muzzleloader that federal law would let you possess is still a firearm under Wisconsin’s gunpowder test, and possessing one as a prohibited person is a Wisconsin felony.
Black powder and percussion caps themselves are generally not treated as “ammunition” under federal law, but anyone in this situation should be cautious rather than confident about where that line sits.
Possession Is Broader Than Holding It
“Possession” under 941.29 covers more than carrying the weapon. Courts recognize constructive possession: a firearm is in your possession if it sits in an area you control and you intend to exercise control over it.6Wisconsin Court System. Wisconsin Jury Instructions – Criminal 1343D A muzzleloader kept in your closet, your truck, or a hunting cabin you use counts, even if you never touch it that season.
This is where households get people in trouble. If a spouse, roommate, or relative stores a muzzleloader where you live, prosecutors can argue you had access and the intent to control it. Separate storage, locked away from the prohibited person and under someone else’s exclusive control, is the practical answer.
Penalties for a Felon Caught With a Muzzleloader
Possession of a firearm in violation of 941.29 is a Class G felony. The maximum exposure is 10 years in prison and a $25,000 fine.7Wisconsin State Legislature. Wisconsin Statutes 939.50(3)(g) – Classification of Felonies Wisconsin splits the sentence into initial confinement and extended supervision; for a Class G felony, confinement cannot exceed five years and extended supervision cannot exceed five years.8Wisconsin State Legislature. Wisconsin Statutes 973.01(2)(c) – Bifurcated Sentence of Imprisonment and Extended Supervision
A new conviction also stacks on top of the record that made possession illegal in the first place. That compounds the consequences for parole, housing, employment, and any later effort to restore firearm rights.
Legal Hunting Options in Wisconsin
Because Wisconsin’s firearm definition turns on gunpowder, weapons that use mechanical energy to launch a projectile are not firearms under 941.29. That leaves archery equipment on the table:
- Compound bows
- Recurve bows
- Longbows
- Crossbows
None use an explosive charge, so none are firearms under state law. The ATF similarly defines a firearm as a weapon that expels a projectile by the action of an explosive, which keeps bows and crossbows outside the federal prohibition as well.9Bureau of Alcohol, Tobacco, Firearms and Explosives. Identify Prohibited Persons A person with a felony conviction can buy a Wisconsin hunting license and hunt during the archery and crossbow seasons. The firearm ban still applies during gun deer season; the restriction is on the weapon in your hands, not the time of year.
Restoring the Right to Possess a Firearm
In Wisconsin, the direct route back to legal firearm possession is a pardon from the governor. A pardon does not erase the conviction, but it can lift the legal disability that triggers 941.29. The criteria and the pace of pardons vary by administration.
A federal conviction is a separate problem. Only a presidential pardon, handled through the Office of the Pardon Attorney, provides a practical federal remedy. Congress has blocked funding for the ATF’s statutory relief program under 18 U.S.C. 925(c) continuously since 1992, so that application process is not available in practice.
Even a Wisconsin pardon does not automatically clear the federal prohibition. Its effect depends on whether it expressly restores firearm rights and on the nature of the underlying offense, with domestic violence convictions governed by separate federal rules. Getting the analysis wrong means a new felony, so this is worth running past a lawyer before taking any muzzleloader, antique or otherwise, out of a case.