RD: That case has enough capacity to drive any 7mm bullet fast!
And the heavies will outpace the lighter stuff at distance. It's a long range cartridge. Might as well take advantage of all that capacity.
My own half-assed rule is that if a cartridge will drive bullets substantially over 3200 fps, I figure I will reach for the next size up. But that's just me.
Lately,if I want to know if a magnum capacity 7mm shoots well, the 162 Amax is the first bullet I grab to try. I have never killed anything with them, but to 600 yards(as far as I can shoot here regularly), it out paces everything else that I have tried.
Which isn't everything mind you...