In order to make ballistic calculation, one needs to know the muzzle velocity. I don't know what your muzzle velocity is, but will guess it is around 1750 feet per second. Calling this the muzzle velocity results in the following calculation.
Another option is to sight your rifle so that the bullet impacts 3" high at 100 yard. This allows for hits at longer range with a center of chest hold. Here is a calculation for that situation.
Sighting in 3" high at 100 yard results in a dead deer with a center of chest hold out to about 175 yard. Of course if your bullet does not start at 1750 fps, but instead is slower, the bullet will not fly as flat as the calculations predict.