In real life the 7mm rem mag will edge out the 270wsm in trajectory(be it slight with the lighter bullets). The 7mm rem mag will open up the gap at 150gr and up bullets. It is a little moreadapatable asit shoots 140-175gr bullets well and at a good clip. Where as the .277 tops out at 150's. Yes, a few 150gr plus offerings available for .277 but I would be willing to bet the 270wsm wouldn't preform very well above 150gr much like the 300wsm doesn't above 180gr's due to seating a longer bullet in short fat case.

Both are good choices for deer. While the.277 isadequate for elk and moose the.284 is better suited based on bullet choices alone for larger then deer!

I wouldn't want both and wouldn't trade a 7mm rem mag for 270wsm either but I hunt more then whitetails or mulies. I own a 270 win and 7mm rem mag, the .270has been back up duty for a number of years.I have decieded to sell it, asI have other rifles and will use the funds to start the process of building a .257 cal deer rifle.