After listening to 2 fools at the local shop talk about that show BOTW. I did some looking. They claim the 7mm Mag is better than the 300Mag ( or RUM for that Matter) at long distances. And back this with single point of data. (which got me thinking) They make all these claims on the fact that berger makes a 180gr .284 bullet with superman BC's. Questions: 1. Is there a trade off point with the 300Win Mag where heavier bullet( Higher BC) starts to loose out to loss in initial velocity? I.E. 180gr traveling at 3100fps vs. 210gr at 2850fps. 2. Using the above logic couldn't all cartridges be compared on their "absolute best" combination of Highest BC bullet and velocity combo for longest range performance? Possibly set a score system to find the distance at which terminal energy drops below 1000 ft-lbs as a universal end point? Does this make any sense?