Re: 6.5 x 47 Lapua
I started playing with the light bullets, but discovered the heavy ones work much, much better in the wind, and are just as accurate.
I like the 142g SMK on top of Hodgdon H4350 powder. I'd suggest that you work up a load somewhere between 39.5 and 42.5 grains. Watch for a sticky bolt as you approach 42.5g and you'll be fine.
I run mine 0.010" off the lands, and have settled on 40.7 grains in my rifle.