few of us could pick a good wife, or hope to pick the best possible wife for a friend and few of us can select a friends ELK rifle, personally I think the 340 wby or 375 H&H is a better choice, most likely because I seldom see elk past 300-350 yards and I like having a bit more bullet mass, my late hunting partner thought I was magnum crazy, and used a BLR in 358 win , pushing 250 grain speer bullets at only 2300fps, for 30 plus years and never had the least problem killing elk. the 300 wby is certainly a fine choice , but like wives a bit of each rifles charm is in the eye of the beholder
