PVL, a rifle chambered for 270 will accomplish the same thing with less recoil, weight, and expense. The 7mm RM was designed for hunters seeking the reach of the 270 with the punch of the 30-06. A 270 is perfectly adequate for Mule Deer. Ideal really.
When you look at reloading manuals and compare apples to apples (barrel length), the 7MM RM isn't really much better than the 270 and 30-06.