sestoppelman
AH ambassador
The little .338 Fed is a good round but lets not get carried away extolling its virtues. We are still talking about the .308 Win case after all, which has considerably less capacity than any 7 mag case. Its a real stretch to say the .338 Fed has more energy than the 7 mag. Only if you compare the hottest possible max pressure load for the Fed to a pedestrian load for the 7 mag. Load both to max, no way.35 Whelen is a great round. I had one custom built on a pre-64 model 70 action but haven't had a chance to hunt it yet.
As another option you might consider is a 338 Federal. Short action and easily fits in a smaller short barreled rifle with more energy than a 7mm mag. I took mine to SA in 2016 shooting 210g bullets and would hesitate to shoot an Eland with it at reasonable distance.