Those 200grn XTP'S are excellant bullets for Deer. I have shot two Deer myself and my Buddy shot two with them in the same year. We were both very happy.

I noticed your group is vertical stringing. Increased velocity would tighten those up i bet to one little hole. 100grns of BH209 with that light bullet is slower in my guns then the equal charge of 777. The Deer wont know the difference just figured i would let ya know.