Check out data for the 170 grain cast bullets and AA5744 powder. That combination can give you modest velocities and low recoil. Don't feel undergunned with cast bullets. Hunters were using them way back in the day before jacketed bullets took over, and nothing seemed to bounce off game back then. You can get lots of info on using cast bullets in everything imaginable on the "cast boolets" website. A great bunch of guys over there that have used cast bullets in everything, and on every kind of game imaginable. 170 grain cast bullets in an 06 is actually a pretty common combination, and has proven to be very accurate.