I am trying to avoid having to wait and send off a 280 ackley cartridge to Hornady if I can help it.....would a standard 280 Rem hornady modified case headspace correctly to give me an accurate OAL measurement in my 280 AI?
Or do I really need the case to have the blown out shoulder to get a proper OAL measure?
Or do I really need the case to have the blown out shoulder to get a proper OAL measure?