The .340 Wea Mag is a real killer. It was my cartridge of choice for elk and moose when I was younger. I used 250 grain Nosler Partitions @2900 FPS exclusively. Both rifles I had were very accurate. One was a custom on a post 64 CRF win Mod 70 Echols Legend stock and the other a Dakota Arms Safari Grade both with 25” barrels. Both .340’s weighed around 10 1/2 lbs with their 30mm 1.5-6X42 mm scopes. Now for elk , moose and larger antelope I user lighter weight 300 Mags, they are lighter and recoil less.