My Remington 1-10 with a 20" loves the 175gr SMK and 180 gr Balistic Tips over Varget. The 168s shoot almost as well, but it hates every 150-155gr bullet i have tried. I get 2600 with the 175gr SMK and it is supersonic to past 1000 at SL, and to about 1200 at Raton.
I think part of the problem with the lighter bullets is the overly long throat.
I use the 130gr Barnes TSX at 2950 from a 18.5" model 7. It is a good bullet and load for hunting. Out to about 300 it is flatter shooting than most heavy bullets. Beyond that the lower BC starts to take effect.
