There are a lot of good bullets you might find useful. I have had really good luck with Berger full bore 155's in front of 42+ grains of Varget and BR2 primers in Lapua cases. The Bergers really like to fly and don't slow down much going downrange. I have had similar results with Sierra 2156's. And I have had similar results with VV N150 (and N140) powders. In general, some combination of those ingredients generally solves most of my problems.
Unless I'm shooting at 900 or 1000 this (Berger/Varget/BR2/Lap case) is my go-to recipe in my Palma gun. At 900 or better I put a little more gas in the tank, but your mileage may vary.