I understand what you are saying but comparing the two velosity and energy wise is a huge difference. You don't need to shoot 400 yds to see the difference. The 300 RUM over 300 wsm is a bigger gain than going from 30-06 to 300 wsm. As compared to the other .300 calibers the RUM is a monster with the exception of the 300 Weatherby. Dead is dead and certainly shot placement is most important. The vast majority of shots on big game such as elk are far less yardage than 400 yds. For those who insist on mags and subscribe to bigger is better the RUM certainly fits the bill. Personally speaking I like my Ruger 30-06 Ultra Lite. It is easy to carry and put down 2 elk this year without any question. Hell I can't even see 400 yards much less shoot at that distance....JK