When LEOPA was finally passed by Congress in 1986, however, the final bill did not
include a performance-based standard, or limit the definition of armor piercing ammunition to
ammunition “designed” for use in a handgun. Instead, the definition has two alternatives: the
first focuses on the composition of the ammunition, and whether it “may be used” in a handgun;
the second focuses on size, jacket weight, and the design and intention for the ammunition.
Specifically, the definition of “armor piercing ammunition” in 18 U.S.C. 921(a)(17)(B) provides:
(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