223 Remington VS 5.56 AMMO: WHAT'S THE DIFFERENCE???
This video clarifies the key differences between 223 Remington and 5.56 NATO ammunition for AR-15 owners. The primary distinction lies in pressure levels, with 5.56 operating at higher pressures, making it unsuitable for 223-specific AR-15s due to potential damage. Conversely, 5.56 AR-15s can safely fire 223 Remington rounds.












