Get some of the Harvester 330gr Hardcast samples along with some sabots. They appear to be from a LBT smooth sided mold made for sabot use. Ive gotten them to shoot better than most hardcast bullets with lube grooves.

As far as hunting, a hardcast works best with a wide meplat and enough fps to displace tissue for a quick kill. They are designed to penetrate and the do that extremely well because they barely expand. IMO they perform best on high shoulder shots or when the shot angle requires more penetration to reach the vitals.