You say "Personal preference of the shooter"... not really in a video game. Irl you choose your cartridge based on available rifles (the one you like, right? The one that also fits your body circumstances and the weight you personally can carry), pricing, available ammo, esp. reloading capabilities, law restrictions, effectiveness and kinds of game in your hunting area, weapon tear (some hot cartridges (looking at you .338 Lapua) will wear off your barrel faster than others), how much recoil you feel comfortable with, whats the price of the whole equip, which cartridges are usually available in your hunting gear vendors nearby, how many specialized huntingtools (aka rifles) you are allowed and able to store (how versatile it must be) and so on... all in all most of them are facts, you don't care in a video game.
In a video game most players play the rifle with the most effectiveness OR the nicest look (subjective fact). From a gaming perspective (only) there needs to be some kind of balancing, and not: Any pick will do just as fine as others.
If any rifle will just do as others, than there would be no point in buying a rifle different to the free starting rifle and one more for the bigger game.
It's an aim of most video games to give progression to get to better suited gear (or shortcutting by paid dlcs... - so to my mind from a gaming perspective even new dlc rifle should cost big amounts of ingame money to give progression, not pay to win).
That's why the rifles need to feel different and have to have different effectiveness... just from a gaming point of view,... not irl