I've shot two does with the .40/200 XTP. I have no complaints regarding performance and would not hesitate to use them again. The load in both cases was 85 grains GOEX FFFg.
One was a 65 yard mid-chest shot. The bullet destroyed both lungs and the top of the heart and exited the off side, blowing blood and chunks of lung several feet behind her. She ran a good ways (some do that) with little blood trail due to the shot being a bit high in the chest. My fault, not the bullet's.
The other was an 85 yard neck shot, just below the ear. Of course, she dropped like a rock and didn't even twitch with a two inch diameter hole completely through the neck and spine.