Roadwild17
Member
What are the differences between .223 and 5.56mm? I know 5.56 has higher pressure, but what does this mean in terms of ware on the rifle? Wll the gun blow up if I shoot a high # of 5.56?
The biggest problem is the throat. The 5.56 has a longer throat to handle the very long military bullets.Shooting these rounds in a short throated 223 chamber causes very high pressures !!