MIL-STD-1267, MILITARY STANDARD: DIMENSIONING OF BARREL CHAMBERS AND SMALL ARMS WEAPONS (28 JUL 1961) [NO S/S DOCUMENT]
MIL-STD-1267, MILITARY STANDARD: DIMENSIONING OF BARREL CHAMBERS AND SMALL ARMS WEAPONS (28 JUL 1961) [NO S/S DOCUMENT]., This document establishes standard methods of dimensioning barrel chambers for small arms weapons on detailed drawings for each type of barrel chamber described herein. It also establishes standard methods for specifying headspace dimensions for the assembled weapon.