I have a build finally coming together for a 338 rum. I'm going to run the 338 berger 300 and my mag is 3.750. I figure I want my oal around 3.71 for feeding but I can't seem to get a definite answer as to what length the dummy rounds I need to send my smith for throating. I was hoping some of you had already gone through this and had some insight. My intended use for this gun is elr targets and lr hunting.
John
John