I didn't think the H&H would fit but wanted to check with others who might have some first hand knowledge to be sure.
I've asked Jim Hack if the .375 h&H is the real minimum where he hunts or is it just the .375" bore or can the 9,3 bore also be used. Once I get all the info gathered there will be plenty of time to decide what to do with the action. The maker who will be doing it for me doesn't really want it until early next year anyway.