I've had great accuracy out of these two loads:
140gr. Remington PSPCL, 53.5gr. IMR 4350, R-P cases, WLR primer
139gr. Hornady SST, 57gr. IMR 4831, R-P cases, WLR primer
Please use caution on these loads. They're proven safe in MY RIFLE(Ruger M77mkII) but may not be in yours. You may see loads with 140gr. bullets and IMR 4350 with heavier charges but this load shoots sub 1" in my gun, I have even shot less than .5". Different cases, primers, lots of powders, (and especially rifles) may cause different pressures and please work up carefully. Good luck.