Ive found out to 40yd from 20ft high pretty much put pin on and release. Only thing you must think about is angle for placement of shot on actual deer if hes closer you must in turn aim a bit higher on the deer to allow your arrow to completely take out both lungs. I envision the angle and want my arrow to exit approx 4 inches from bottom of deer on offside On shots over 30 I aim a bit lower as deer tend to react and drop a bit