The internal diameter or bore of a gun barrel A small-calibre revolver Gauge Measure the dimensions of (an object) with a gauge When dry the assemblies can be gauged exactly Calibre Variant of caliber. Gauge The distance between the two rails of a railroad. Calibre A degree or grade of ex...
UL-RF-J .50 caliber M33 FMJ Ball, mild steel core 660 grains (42.7 grams) 2910 fps (887 m/s) 12389.2 ft⋅lb (16797.5 J) Note: There is no hierarchy of threat severity in this list. Table 11.3 Shotgun Designations and Ammunition Specifications Rifle (RF) Designation Ammunition Weight...