(17)(A) The term "ammunition" means ammunition or cartridge
cases, primers, bullets, or propellent powder designed for use in
any firearm.
(B) The term "armor piercing ammunition" means -
(i) a projectile or projectile core which may be used in a
handgun and which is constructed entirely (excluding the presence
of traces of other substances) from one or a combination of
tungsten alloys, steel, iron, brass, bronze, beryllium copper, or
depleted uranium; or
(ii) a full jacketed projectile larger than .22 caliber
designed and intended for use in a handgun and whose jacket has a
weight of more than 25 percent of the total weight of the
projectile.
(C) The term "armor piercing ammunition" does not include shotgun
shot required by Federal or State environmental or game regulations
for hunting purposes, a frangible projectile designed for target
shooting, a projectile which the Attorney General finds is
primarily intended to be used for sporting purposes, or any other
projectile or projectile core which the Attorney General finds is
intended to be used for industrial purposes, including a charge
used in an oil and gas well perforating device.