1tn: I'm not "in the know" on LR shooting as they define it today.....
Probably chose it because I have shot the H&H and 338 a lot out to 500-600 yards and like the 30 caliber magnums better for that stuff.
I ran the numbers but they are there for everyone to see,so won't recite them here;besides there are too many bullets to compare. I suppose it helps that I have killed some bull elk out around the 500 yard mark with H&H-type ballistics from a 300 Win mag.
Plus, I like the pre 64 300 H&H rifle better than I like the Sako.