I have 4 7RMs. 2 are Senderos and 2 BLRs. I've never regretted that I wasn't taking advantage of the rifles potential because I was too close. Never felt like 7mags were particularly hard kickers. Most elk I kill (most anything actually) are at ~100 yards. On a few occasions I killed elk or antelope at 400yds or so. That is not really the shot I'd prefer but the 7mag was nice to have at the time.
