I got to do some more testing this afternoon - but as it was my last opportunity to practice before the Trafalgar, I shot with open sights (200 yards) some from a bag and some from a sling...so the results in terms of accuracy are inconclusive....
I used the once fired PPU factory cases, neck sized only - even on the lowest load, there wasn't any sooting past the shoulder...so that's solved that issue...but shame about not being able to use new brass...
All were seated to 3.050 - deeper than the 3.110 in the Vhit manual, but not as deep as the PPU factory.
I tried 5 with 36.5 gn of Vhit 150 - the recoil still felt more than the factory, and there were ejector marks on 1.
Then 10 with 36.0 - they shot nicely, and no ejector marks.
Then 10 with 35.5 - as above.
Finally 10 with 35.0 - These were the first to feel 'mild' in comparison to the factory, and seemed accurate...so those will have to do for the Trafalgar
It's been very much guess work without a chrono, and when I get the opportunity I'll stick the scout scope back on it and try some more rounds around the 35.0 gr mark for proper accuracy.
I've put at least a hundred rounds down the Mauser now, and have only just sorted the sooting and ejector mark problems, with still proper accuracy to be sorted....so is it a difficult rifle to load for...or am I just crap at loading? :P
Cheers again for your help Adam, I do have more questions, but they can wait a few weeks :cheers:
And Hans - Thanks for you comments

(sorry I missed your post before...)