Retumbo. With 160-162 gr bullets, look for a node somewhere around 3040- 3060 fps. if you work up a load before 50-60 rounds or so, you will likely have to back your charge down. Work up to this charge weight after 50-60 rounds: 70-71 grains retumbo. 71.1 is what mine likes with a 162. And that's near being hot.