When the .35 Whelen was developed, it was designed to take on Large American Game. The Winchester .375 H&H Mag was not in production and the long Mauser actions available from Germany were very expensive. The shorter ctg was just right for the 1903 action and the problem of an inexpensive Big Bear rifle was solved. The .35 Whelen is much more powerful that a .444 marlin and at longer ranges outclasses the .45-70.
Doug
Doug