cperso
AH veteran
I've been reloading for my ABolt 300wsm since 2005 and have encountered zero feeding issues to date.300 WSM is close enough to .300 WM, to call them equal. Just using a short and fat case. If a bullet works with WM, it works with WSM.
If I were to take a .300 WSM hunting, I'd first verify that it works perfectly in my rifle. The sharp shoulder has potential to make feeding more rough than with more gently tapered cartridges.