I thought the 300prc was basically supposed to replace the 300wm much like the 7prc replacing the 7mm rem mag.
I never liked head spacing off the belt of these belted magnums so you may want to set them up to head space off the shoulder. I also don’t know how much case capacity if any one may loose with the longer ELDX/M and VLD bullets. Im sure the chambers that are being cut for the 300wm don’t have the necessary lead for the longer bullets nor is the mag long enough to push the bullet further out of the case.
With all that being said, the 300wm is still a very good round, both in hunting and long range shooting.