RE: question on kansas early season
Taken from the KDWP website regs.
Legal muzzleloading rifle for deer (early season) - muzzleloading rifles and muskets that have open or peep sights, including fiber optic sights, that do not magnify the target, project visible light, or electronically amplify visible or infrared light, that can be loaded only through the front of the firing chamber with separate components and that fire a bullet of .39 inches in diameter or larger.