Squaregrouper
Kragaphile
Do you have a secret load for 6.5 Skinny Jeans/6.5 Man Bun/6.5 Local IPA?Study? Load sierra or Nosler 175s to mag length over 42 gr of imr4064 or 41 gr of 8208xbr. Use any large rifle primer that's been stored right.
Or, since it's a pss with a long 12 twist, run 45.5 varget under sierra 155 Palma (#2156) in lapua cases. For winchester brass, probably want to be 46-46.5gr. 47 gr imr4064 or 46gr n140 will also work. The 2156 can be more length sensitive so measure carefully and try to keep them within .020 of lands. My bisley reamed krieger likes .015-.020. original sako barrel shot best at or in lands. My 30" 13 twist liked .020 so I'm guessing the sako bbl was probably a sloppier throat.
I had a great load for El Cheapo (TC Compass), but my Bergara BMP doesn't really like it as much.