The 175g LRAB are sure accurate in my 700's with R#22, cci 250 at 2850 fps, and R#26 at 3030 fps.
Just an option for you. I have never shot the 168's, can't find them. Retumbo, around 71g with a 215 worked well with the Berger 168g vld hunting, ~3100 fps. (start at 69g and work up in your rifle).