The 223 primer size takes a small rifle primer. Some load data, such as Nosler and Lee recommend regular small rifle primers, while others recommend either magnum small rifle or the #41, harder magnum small rifle primers.
The 223 primer size takes a small rifle primer. Some load data, such as Nosler and Lee recommend regular small rifle primers, while others recommend either magnum small rifle or the #41, harder magnum small rifle primers.