My 6.5x47 is a hunting rig built by Jon Beanland. #3 Hawk Hill, 1/8 twist, shooting Berger 140 hunting VLDs with 37.5 grains of Varget, CCI 450 and Lapua brass. My rifle just likes Varget, my SD is under 6 FPS and my ES is under 15 FPS. I m getting 2805 FPS. I have just over 500 rounds on the rifle. For whatever reason my rifle really likes Varget, I’m probably in the minority though, H4350 and Reloader 16 would be the first powders I’d play with shooting a 140.
My experience with this design and talking to the very many people I know who load for it is that powder preference ranges from individual rifle/barrel to rifle/barrel with 123-142gn band bullets. Some like yours will only perform well with H. VarGet / Re15 and equivalents. Others don't like these powders at all and only shoot well with the 4350s and equivalent burn speed powders. I don't think I know of any that accept both, but I'm sure there will be a few about.