Ammunition and magazine laws in Mississippi

97-37-13.  It shall not be lawful for any person to sell, give or lend to any minor under eighteen (18) years of age or person intoxicated, knowing him to be a minor under eighteen (18) years of age or in a state of intoxication, any
deadly weapon, or other weapon the carrying of which concealed is prohibited, or pistol cartridge; and, on conviction thereof, he shall be punished by a fine not more than One Thousand Dollars ($1,000.00), or imprisoned in the county jail not exceeding one (1) year, or both.

(x)(1) It shall be unlawful for a person to sell, deliver, or otherwise transfer to a person who the transferor knows or has reasonable cause to believe is a juvenile—
(A) a handgun; or
(B) ammunition that is suitable for use only in a handgun.
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(5) For purposes of this subsection, the term "juvenile" means a person who is less than 18 years of age.

Small Arms Ammunition: Ammunition is classified as a Division 1.1, 1.2, 1.3, or 1.4 explosive, depending on the degree of hazard. Ammunition that is regulated as a Class 1 explosive and designed to be fired from a pistol, revolver, rifle, or shotgun, as well as associated primers and blank cartridges (including those designed for tools) and propellant powder for use in any firearm, is prohibited from mailing.
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Shotgun Hulls, Empty Casings, Nonmetallic Shotgun Hulls, or Casings Without Primers: These articles are not classified as explosives or hazardous materials under 49 CFR and, therefore, are mailable, subject to the applicable mailing rules (refer to 224).