PS, you know you were asking about a 300 vs a 375, I think a .338 might be the perfect round for you....

I think any .338 would be awesome....whether its the WM, RUM, or WBY....get the .340wby and you can rub it in your bro that its better than his .300 wby....haha.

Still a little skeptical of the .338 RUM, though I like the increased case capacity compared to the .338 win mag, and the fact that its beltless.....not sure if its here to stay is the only thing....?