Mule Deer - that sounds pretty darned close to my big moose story. But it was in Northern BC and not guided. Rifle was a Brno 21-H in...7mm. The factory RWS 162gr KS loads did a number on the bull. Even the distance was similar at ~200 yards.
As for the "other" 7mm, I have two of those in the safe and they also seem to do well.
