I saw a little information of the 500 phantom with a 168gr .308 sabot. 3200 fps with 44gr of powder. That is the same velocity of a 300 Weatherby using half of the powder. That's 30% less recoil. Promising considering that one of the big reasons people don't like the 300 Weatherby is because of the recoil. Equally promising, I think one could cut the load to almost half and still get velocities around 2550 fps around a .308 with recoil between a .243 and a 30-30 (30% less than a .308.) Why isn't this a more popular cartridge for recoil sensitive shooters. Of course all of these numbers are very loose but the idea is there. I hate the idea of training youngsters to hunt with lower powered rifles (There is nothing wrong with shooting deer with a .243 Winchester, .250 savage, or .25-35 but shot placement is a necessity and if anyone should be shooting these cartridges it should be the more experienced not the less. A 30-06 is much more forgiving)