There is but one reloading powder for the 308 and that is Ar2208 or Varget in your language.
If this doesn't work try 2206H or again H4895.
If your 308 will genuinely not shoot with either of these powders then you really need a new rifle.
I built one a year or so ago using a trued 1990 made Remington Bdl Action and a 26" finished Bartlein Barrel
I use Norma 25 06 brass and Redding dies.
Works for me.
I use and have used for some years now a Schmidt and Bender PM11 3-12x50 with the illuminated P4 Fein reticle.
It sits on top of a Sako FinnLight. The glass is great, turrets are true so long as my data is, reticle is perfect for me.
Never regretted buying it, will never sell.