I've got a few smoothbore options here, I've put the 50 yard matches in bold
Aggregate Y - 5 shots—smoothbore—no rear sight above the plane of the barrel—no set triggers—54 caliber minimum—flintlock only.
Match 105 25 yards, standing groundhog target
Match 106 25 yards, running deer target.
Match 107 50 yards, elk target
Match 108 100 yards, 200-meter French target.
Aggregate JJ - Sighted Smoothbore Aggregate
Smoothbore must be checked and tagged. 5 shots—offhand—flintlock or percussion—fixed open sights (front and rear)—no limitations on caliber.
Match 34 25 yards, 6-bull target (7-ring).
Match 35 25 yards, 6-bull slug gun target.
Match 36 50 yards, 100-yard target (7-ring).
Match 37 100 yards, 200-meter French target.
International Weekly Medal Reentry
Match 120
International smoothbore flintlock musket or trade gun. Muskets can be of any nation; both muskets and trade guns must be at least .54 caliber, no rear sights, can be original or reproduction. 50 yards offhand, roundball, no set triggers, 200-meter French target. Trade guns that are suitable for the Northwest trade gun match and of .54 caliber are suitable for this match.
Match 121
International Free Rifle. Flintlock or percussion, 50 yards, standing offhand or free rifle position, B-19 target, roundball or bullet, any metallic sights.