Often, a sore/callused ring finger is due to torque on the string at full draw. If you can get some pictures of you at full draw, from the front, you can see if the string is pulled away from the chin/face by the ring finger. I'd suggest that that is often due to too stiff a wrist, forearm and hand drawing the bow. If that kink in the string is there, it will also lead to inconsistent shots.
If your string hand, wrist and forearm are as relaxed as possible, the back of your hand will be flat and the weight of the bow will help to keep the string aligned or straight. That relaxed approach will also even out the pressure on your string fingers