Well, I"ll throw in my hat. Performance wise, the Weatherby will win hands down. I am told, but can not prove, that the Weatherby round can be a little fussy to get to shoot. I had a 300 Weatherby in sendero, and had no accuracy issues. As far as the 7 Rem. The brass is readily avail, and typically are easy to get to shoot. The Weatherby brass is made by Norma. It is fairly expensive. For the rem mag, you can buy Norma brass, but it will not be as much as the Weatherby brass. So, when it comes to performance, it as usual it comes with a price. My money would go to the 7 mm Remington mag. They shoot well,brass is more avail, and performance is awesome. I have three, and love them all.
AIM SMALL, MISS SMALLL