As with everything: depends.
I had a 300 WM in a mid/light weight rifle. I like to be accurate (duh!) and I backcountry hunt miles off the road.
Accuracy in real world situations, not off a bench, requires lots of practice. To practice a lot you have to not hate shooting your rifle. I HATED shooting that rifle after 4 or 5 rounds, too light. Maybe I'm a recoil *****....
I added some weight to the butt stock which helped a lot with shooting but not with carrying the rifle way off the road up and down mountains.
I got sick of it after one year and dumped the 300WM for 7mm-08. I know the 7mm-08 is so weak will bounce off of elk hide but it shoots like a dream and is very easy to carry in the mountains.
Depends! If your in and out of a truck and can use a heavy rifle I'd go with a 300 WM. Not for me and what I like to do.