025-inch longer freebore distance than the .223 Remington. This is the distance from the case neck to the beginning of the leade — the gentle cone that funnels the projectile into the rifling. A ...
223 Remington. This is the distance from the case neck to the beginning of the leade — the gentle cone that funnels the projectile into the rifling. A shorter freebore with the higher-pressure ...