Modern In-lines have turned the muzzy season into a single shot rifle season which has taken it away from the original intent of a primitive weapon season.
Muzzleloader Season - Muzzleloading long guns of .45 caliber or larger, and handguns .50 caliber or larger, having all components loaded through the muzzle, with flint or percussion ignition, firing black powder or black powder substitutes are legal. Smokeless powders are not legal. Telescopic sights are prohibited. (Exception: No magnification (1x) scopes are legal.)
while 209 primers might fit within the definition of percussion ignition I doubt they were in the original intent for the primitive season.
Muzzleloader Season - Muzzleloading long guns of .45 caliber or larger, and handguns .50 caliber or larger, having all components loaded through the muzzle, with flint or percussion ignition, firing black powder or black powder substitutes are legal. Smokeless powders are not legal. Telescopic sights are prohibited. (Exception: No magnification (1x) scopes are legal.)
while 209 primers might fit within the definition of percussion ignition I doubt they were in the original intent for the primitive season.