You must be thinking of back when they had the late modern firearm season in 564 that went to December 31st. Since it's a firearm restriction area during modern firearm seasons a guy had to use a muzzleloader or a shotgun, and scopes would be legal since it was a modern firearm season. It would be the same thing for elk. If you hunt elk in 564 during modern firearm season you can use a scoped muzzleloader. But during the elk muzzleloader season, of course you could not have a scope on your muzzleloader.