Shod in the case of 300 and 338 etc you are right....but in the case of the 7 RM some contours are just too heavy.
The cartridge is not a real big magnum,does not gin up a lot of recoil(IME about like a 30/06. And a slightly lighter contour makes the rifle balance better,handle snappier,and saves some weight. I shot a couple the other day with #2 contours and full house loads....the things did not even lift off the bags.
