Kentucky keeps it pretty simply - quoted from our Hunting Guide;
"Muzzle-loading gun
defined as) any rifle, shotgun or handgun in which the bullet or projectile is placed in the gun from the discharging (muzzle) end of the barrel or cylinder."
For deer hunting the state guide says this regarding muzzleloaders:
"Muzzle-loading equipment - restrictions -
Muzzle-loading rifles or handguns of any
caliber are permitted. Muzzle-loading
shotguns no larger than 10 gauge used
with slugs only are permitted. A muzzleloading
firearm that can be fired more
than once before reloading is permitted,
as long as it meets the definition of
a muzzle-loading firearm. In-line
muzzle-loading rifles are permitted and
using telescopic sights (scopes) on
muzzleloaders is allowed."
Note - there is one set aside area where in-lines and scopes are not allowed.
Modern weapons - only restriction for deer is that they not be rim fire - other than that anything goes - I guess you could leagally hunt deer with a .25 auto if you were inclined to do so. :rotf: