I worked up a load for my Ruger M77 shooting 180 grain Bergers, H1000 powder, Rem brass, and CCI 250 primers. I started at 63.5 grains of powder and went up to 68.0 grains. The best group it shot was 1/2" at 100 yards. The bullets are seated .050 off the lands. I had to seat them that deep to clear the magazine. I am going to play with the seating depth to see if I can tighten the group up a little more.