Alright, so here's where I'm at....
Like you guys pointed out, smithy wasn't about to use the chamber reamer to cut a sizer die.

BUT....... there's a guy on gunbroker that is offering a 7mm Mashburn loading service that might be able to get me up and running while I wait for dies. Still gonna need some brass though


"For some unfortunates, poisoned by city sidewalks ... the horn of the hunter never winds at all" Robert Ruark, The Horn of the Hunter