I have had at least two 7mm rem mags, both were model 70 classic stainless sporters. Hunted with one for a few years, shot a few big mule deer with it without much drama and shot it quite a bit. Sold that last one to a nephew, trying to help him get started. Should have hung onto the rifle instead! For me, they are easy to shoot in an 8lb rifle, not sure I would want one at 7lbs. Keeping an eye out for another one so I guess you could call me a fan, at 65! (where did the time go) My brother used one for a couple decades, on moose/black bear/deer with reliable results. Both of us typically used 154-160 grain bullets, fwiw. If/when I get another one, I will probably try some 140 grain bullets for the deer I typically shoot, keep the trajectory nice and flat and a bit less kick than the heavier bullets.
