Actually the 168 load was developed for me by Joel Russo, when I bought the rifle.
I've tried Reloder 25, 22, and 17, but so far that load is the best for the 168's.
It is loaded .015 off the lands.
The 180 load I developed, and it is my 1000 yard F class load. It shoots best .007 off the lands, go figure! Once again, I tried all 5 powders.
I THINK Reloder 17 MIGHT give me a good load with the 180's, but I'm still playing with it. I also think it is a little faster than H1000, but as I said, I'm still working with it for the 180's.
Here is a group with the 180's at 200 yards, first shot was top right, second was bottom right, then the group is 6 shots. I was developing the load, trying to find ideal COAL. I usually zero at 400 yards, so I had to adjust for 200, thus the first 2 shots.