In a 270 I would stay away from the Accubonds. I have seen recovered bullets from the 325 wsm and 300 wsm that had separated jackets and failed to penetrate and lost 60 -70% of their weight. You would be pushing a much smaller/lighter bullet with the same amount of powder and that means more stress on each grain of that bullet. Nosler Partition, TBBC and Barnes x would be my top choices due to the better weight retention.