As far as PowerBelts go, I won't shoot anything smaller than their 348 gr. bullets. Heard and witnessed to many instances of the lighter PB's not making an exit wound. In thick cedar brush, it's nice to have a blood trail. I'm about to start experimenting with the 405 gr.PB's, just for kicks. Now, I've got a buddy that's had great success with the 300 gr hornady SST bullets.He's gotten some incredible exit wounds.