I have really liked the 225gr Sierra SBT and the Hornady 250gr RN. My favorite powders have been H322 and Varget. I have also heard really good things about H335. The whelen is a grand old cartridge. From my Ruger bolt gun I can get 2650 with the 225s and use an extremely accurate load of just over 2400fps with the 250 RN load.