I have been using one for a number of years now, I use 35 gr bergers, because of the feed back seen on the web for both the 204's and 177's, the 35's don't have the best BC so about 300 yards is where they fall below 400 ft/lbs of striking energy. When I am shooting gophers I use 39 gr seirras but they are not considered fur friendly. The suppliey of bergers in Canada has improved some since then (I picked up a couple of years worth on a family trip in the States).
The berger head is very good with fur some of the coyotes I have shot you would have to really look to find the bullet hole.
Mind you with your larger eastern coyotes you can't go too wrong with the 40 hornadys guys have been reporting exit wounds but that extra punch could be useful for you, shooting the larger animal..