It is amazing to see what is and is not considered a legal "method of take" for deer hunting.
Take Missouri for instance:http://mdc.mo.gov/hunting-trapping/regulations/deer-regulations
"Methods allowed during all portions of the firearms deer season, except the alternative methods portion:
•Centerfire pistols, revolvers or rifles using expanding-type bullets. Legal ammunition includes lead bullets, copper bullets and bullets made of other material designed to expand.
•Shotguns (including .410) with slugs only
•Air-powered guns, .40 caliber or larger, charged only from an external high compression power source (external hand pump, air tank, or air compressor)
•Muzzleloading or cap-and-ball firearms, .40 caliber or larger and capable of firing only a single projectile at one discharge; in-lines and scopes are allowed.
•Multiple-barreled muzzleloading or cap-and-ball firearms and/or muzzleloading or cap-and-ball handguns, including revolvers, .40 caliber or larger, are allowed and may be carried in addition to a muzzleloading or cap-and-ball rifle.
•Longbows, compound bows or recurve bows of any draw weight; hand-held string releasing devices, illuminated sights, scopes and quickpoint sights are allowed.
•Atlatls, which are defined as a rod or narrow board-like device used to launch, through a throwing motion of the arm, a dart 5 to 8 feet long
Methods prohibited (in use or in possession)
•Self-loading firearms with capacity of more than 11 cartridges in magazine and chamber combined
•Ammunition propelling more than one projectile at a single discharge (such as buckshot)
•Full hard metal case projectiles
•Fully automatic firearms"
The advancements in buckshot performance / lethality continue to be lost on the rule makers - even in the quest to make just about every other possible method legal.