.38 caliber .38-caliber .38 calibre .38-calibre
.38_caliber%3:01:00:: .38-caliber%3:01:00:: .38_calibre%3:01:00:: .38-calibre%3:01:00::
of or relating to the bore of a gun (or its ammunition) that measures thirty-eight hundredths of an inch in diameter
a .38 caliber shell