Modem firearms are designed to fire ammunition of a specific caliber.
We report two gunshot fatalities where .38 Special handgun ammunition
was used inappropriately in .30-30 Winchester lever-action rifles. In
both cases the recovered wad-cutter bullets were abnormally elongated
and unusually striated. In one instance, the cartridge case was expand
ed and split. Ballistic tests using .38 Special ammunition in a .30-30
Winchester rifle created deformed bullets similar to those recovered
from the body. The test fired cartridge cases expanded and jammed in t
he chamber. While the .30-30 rifle chamber configuration accepts .38 S
pecial wadcutter ammunition, its narrower barrel squeezes larger calib
er lead bullets out like toothpaste. It behooves forensic pathologists
to not make hasty determinations of the caliber and weapon type based
on a casual inspection of the recovered bullet.