i like the 6.5-284 and would consider one for coues; it is hard to get one right out of the box. my 6.5-284 sendero( no brake) kicks more than my 7mmmag with a brake. the 300 win is a great round. the sendero is a great choice. the 300 win mag has lapua brass available. my experience is that it is one of the easiest to get a "good "load for . and it can easily handle deer at 600 yards. get a vais, adjust the trigger and put a good scope on it you are ready to go.