Am pretty sure the 9.3x62 is more popular world-wide, due to Africa, where quite a few hunters still use it, as do a lot of European hunters.
In North America the .35 Whelen is more popular, but not like it was when Remington first turned it into a factory round. What I heard through the business is they sold around 20,000 Whelens the first year, and then sales dropped considerably.
