I've got the dies, thanks to a fellow Forum Member, I've got the cases. I hope I'll soon have the rifle!

But, in the meantime, do any of you please have any 8x60s loads that they have used and might share?

American loading manuals being not much help as they offer only 8x57 and that "constrained" by a low SAAMI pressure limit.

Many thanks in advance. I shall be hoping to use 150/154 and 175/180 grain bullets. Probably the Sierra 175 grain spitzer FWIW.

I have no personal loads to share, but maybe this will help:
http://stevespages.com/323_2.html

Try to contact AR member "Monastery Forester" - he has a lot of experience with 8x60S.

Found some more:
http://lutz-moeller-jagd.de/8-mm-S/8x60-S.htm
http://www.tecmagex.com/2002/fr/pdf/tables.pdf

Ok - found the following by Norbert Klups (Jagen Weltweit):

Welcome to that most discerning of clubs - the 8 x60Sclub !

I looked at all the web data (I have an additional web print I can e mail if you pm me your e mail) and decided that what was reported as excellent in 8x57S and appeared to be OK in 8x64S would work well. I elected to split the difference in maximum charge weights twixt x57 and x64 load data and work up carefully.

My powder of choice was Hodgdon H380 in RWS cases lit by Fed 215 magnums under a 200gr partition. My hope was for 2,600fps but accuracy and 2,500fps was fine.

The max charge produced 2,600fps with no pressure signs and what appeared to be accuracy given it was a 4x scope, howling gale, rain and a very poor position. I plan on reducing a couple of grains and working back up in warmer weather (H380 being a ball powder has a reputation for being rather temperature affected)

From memory the COL was long and the max charge was 55gr but I will need to verify that.

Many thanks to all of those who have replied once I have the rifle I'll post some pictures.