I would tell you but while I have the reamer in hand, I am still waiting for Benchmark to give me the barrel. The reamer Manson made me has .135 freebore at .3668 then a 1 1/2 degree lead. Neck is tapered .392 at the shoulder to .391 at the case mouth. Sounds pretty similar to the JGS. Hopefully will have the barrel in hand in the next month or so.
But if you get yours chambered first, I'd love to hear about it.
