I'll take a slightly different track with short explanation.
About 15 years ago a relative of mine bought a box stock 300 short mag, at that time I was also primarily shooting a 300 short mag. I asked him what ammo he was using and he told Hornaday.... who at that time was not producing 300 wsm ammo as they had not come to an agreement with the owner of the rights to the wsm at that time. No amount of arguing with him could convince him that he didn't have hornady wsm ammo, he was convinced he had a case of it.
He worked seasonally and hunted hard, multi states and multi species over almost a decade. I'm guessing more than a dozen elk, several black bear many coyotes more deer than I can remember and a cougar... or at least that's the pics he sent me... one day out of the blue he asked if we could load up a bunch of ammo as his case was low and he couldn't find anymore of the same ammo. Looking at his baggy of brass it all looked funky and a little bulged.... it was 300 rcm ammo, close to 300 wsm but not 300 wsm. He'd shot more critters in a decade than most will in a lifetime with an over the counter box stock rifle and the wrong ammo....
Point being sometimes we over analyze things way to much, admittedly our culture makes it easy to access data from 1000 sources and rather hard to go where the wild things are. Meanwhile some redneck is wandering around the west whacking and stacking game with the sportsmans package special and the wrong ammo, the important part was being in the field.
The 300 might carry a bit more energy down range, the prc might buck the wind a bit better... with good modern bullets game isn't going to know the difference.
Buy the rifle that fits you best, that has features you like just about all will get it done.