Quote Originally Posted by charlie b View Post
They have the same headspace, just different throat (according to SAAMI std). After slugging my axis I found it has a longer throat than the SAAMI std.

Thicker brass is a non-issue. Both are below 60kpsi which is where many other cartridges are certified.
308 Win is between 1.630 and 1.6340. The NATO is between 1.6355 and 1.6405.