I used the Hornady SP 130's with Viht 140. This was through my SSG and the groupings were reasonable at an inch.
I later tried Varget and the group tightened up. There was also, I believe, less felt recoil.
A typical example of barrels having preferences. If I wanted to group with the rifle - then Varget for me in this barrel, but if it was simply killing deer etc - the Viht 140 would be more than adequate.
Some very nice grouping in the above threads. Congratulations.