5.56 Chamber & .223 Ammo Measurement Comparison

3/31/2006

Drawing Note Dimension Range Fire Formed

Cartridge RCBS Full

Length Resized

Redding Small-Base Full

Length Resized

XM193 Mil-Spec Ammo

A 1.4666 1.4666 - 1.4596 1.461 1.454 1.454 1.457 B .3759 .3759 - .3679 .374 .374 .374 .373 C .3584 .3584 - .3504 .358 .357 .355 .354 D .3542 Reference .353 .352 .350 .349