No need for anything heavier than a 140 accubond, I never understood the logic of taking a fast round then slowing it down with a heavy bullet on something like deer, the tough 140's will shoot through them anyways, no need for extra penetration.
Wind drift for one. I shoot 160 Accubonds in my STW for that very reason. On the contrary, I've never understood why people take a cartridge with a huge case like an STW and squander it with a light bullet. Heck, you can get 3250 with a 140gr bullet from a standard 7mag. Due to the ballistic coefficient of the heavier bullets, they don't actually drop much more than the lighter/faster bullets.
