OzFclass

Found this reference today. Can't confirm how accurate it is, but if anyone is looking at making a pilgrimage...

You want to look at Lee Martin's post on the 7 January, 2015 at 9:47am about a 1/5th of the way down the page.

http://singleactions.proboards.com/thread/11487/building-benchrest-rifle?page=11

I actually started on page 4 of that thread and couldn't stop reading.