If I remember correctly you have Quickload. In my experience, the program has been quite accurate for predicting velocity (and, we can assume, pressure) with the Reloder series of powders and the .308 and .35 Remington with cast bullets and is invaluable for stitching together a more complete picture from fragments of published data.
Ian,
I do have Quickload and together with all of the info I could find online & in manuals I have been to gather I should be able to create loads that will work yet be safe.
I'm headed to the indoor range this afternoon with the rifle together with initial loads using 200gn Hornady Interlocks. Rifle functioning and initial chronograph numbers is the aim of this outing. I have already cast about 100 of the Lee 200gn bullets and coated them and should work on them this weekend.
In the eager rush last night I mounted the Leopold 3~9x50 Scope and only after I took the pic I noticed that that the elevation and windage knobs were rotated by 90*. This has been fixed but oh the shame!
Here is the completed build with the Wilson Hunter Elite 18" barrel.