Re: .375 Chey Tac neck clearance
most of us have been down the road you're heading. assuming we'll get better accuracy with a tight fitting round with very little clearance. i'm going through it now and i wish i'd never made a tight fitting neck. when you start turning necks, you'll open up a big can of worms that will probably end in less accuracy. unless you're building something to compete against Tony Boyer with, i would recommend not turning the necks, and putting a SAMMI spec chamber in your gun. most on here are after as much accuracy as they can get from a customized hunting gun and quite a few enjoy bench rest competition also. you just won't get any better acuracy turning necks and like i said, probably will not be as accurate because of the neck turning for one reason or another.
maybe Kirby will jump in, he's played with the 375 and the Chey-Tac brass. i'm sure he can give you advice as far as springback, clearances, and anything you'll want to know about this round.