Toying with the idea of a 223 for standard 55-60gr usage but would want the ability to shoot the current NATO 62gr milsurp load without hard extraction or pressure problems.
Are there any material differences in chamber size between 5.56Nato and 223?
What twist is required for the 62gr milsurp. I understand that the military 7 twist is to stabilise the much longer tracer rounds which I don't intend to use.
Are there any material differences in chamber size between 5.56Nato and 223?
What twist is required for the 62gr milsurp. I understand that the military 7 twist is to stabilise the much longer tracer rounds which I don't intend to use.