Longer throat. Military loads are generally very hot in 5.56Quote:
Originally Posted by Wildman
Printable View
Longer throat. Military loads are generally very hot in 5.56Quote:
Originally Posted by Wildman
Ripped from M4C
" With all other things being equal, the 5.56mm NATO chamber with its longer and shallower angled leade and longer amount of effective freebore will produce less chamber pressure than a .223 Remington chamber, when firing .223 Remington SAAMI Spec ammunition. Because of this, 5.56mm NATO amunition can be loaded to a pressure that would be considered excessive in a .223 Remington chamber, yet acceptable in a 5.56mm NATO chamber. (Pressures are measured using different methods between the two systems.)"
There ya go