The 300WM will get out there. I've fired mine a few times at the + distance to see the difference between developed loads. Target we used was a small boulder across a wide canyon. Blm map verifies that it is just over a mile. Elevation was 7100ft. Location was in the Tahoe National Forrest. I must say that the 30-378 does the job a bit better though.
No such thing as a stupid question. What is stupid is not asking it.