As American as 45Auto, .223Rem (5.56×45) has been the standard round of the US military for over 55 years.
Developed for the original AR-15, .223 Remington has become one of the most popular sporting rounds with shooters and hunters in the United States.
This lightweight, high-velocity round lends itself to being chambered with various styles of rifles from bolt action to semi-auto and belt-fed.
Specs:
| Ballistic Coefficient (G1) | 0.225 |
| Muzzle Veocity (FPS) | 3261 |
| Muzzle Energy (ft-lbs) | 1299 |
| Max Powder Pressure Bar (lb/inch2) | 58015 |
| Cartridge Max Length (in) | 2.26 |
| Cartridge Average Weight (Gr) | 164 |
