A 150gr SPBT Sierra (Gameking or Matchking) in a Norma case (Jaktmatch cartridges bought and fired) or similar sat atop 40.4-44-3gr of N135 or 42.3-46.8gr of N140. Primers will be either Fiocchi, Remington or CCI
Either powder should be just right for the 308. Vihtavuori has data available online.
Should be no problem.