.223 Remington ballistics
.223 Remington Ballistics:
55 Grain Velocity about 3240 FPS and 1280 Ft lbs of muzzle energy.
62 Grain Velocity about 2910 FPS and 1170 Ft lbs of muzzle energy.
The history of the .223 being used in the United States Military for years. Commonly used in 55 to 62 Grain.