MIL-STD-1258 (NOTICE 1), MILITARY STANDARD: CHROMIUM PLATED 5.56MM, 7.62MM, AND CALIBER .30 SMALL ARMS BARREL BORES (28 MAY 1987) [NO S/S DOCUMENT]

MIL-STD-1258 (NOTICE 1), MILITARY STANDARD: CHROMIUM PLATED 5.56MM, 7.62MM, AND CALIBER .30 SMALL ARMS BARREL BORES (28 MAY 1987) [NO S/S DOCUMENT]., MIL-STD-1258(AR), dated 30 June 1972, has been reviewed and determined to be valid for use in acquisition.