ADJECTIVE
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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
How To Use .38-caliber In A Sentence
- Donovan, with a .38-caliber pistol strapped to his waist, had to make several trips to the dense Burmese jungle just off the northern Thai border to unsnarl problems with the flights. Wild Bill Donovan