There are a couple dots that go to low mag. There are also magnifiers you put in line behind the dot. I don't think you need magnification. If you can see the turkey, you can superimpose a dot over the neck.
I have trouble picking turkeys out when they are in cover or in dappled shade. But if I can see them I have no trouble making the shot with just a bead. A red dot is almost cheating. I just focus hard on the bead and line up the blurs. Of course, being legally blind since 9 years old has given me time to practice. Middle aged fellas just now seeing what I have dealt with all these years need help to catch up.