I plan to build a 7 SAUM and I noticed different neck size options for the reamers. What is the most common chamber neck size for the 7 SAUM? What is the common free bore? I have new ADG 7 SAUM brass for reloading.
Report back when you get her built. I'm patiently waiting on a new Action to come out. When it does I will be building a saum or SS. Probably saum
Are you running it in a short action?