Gutshot

I have had similar problems and it usually comes later in my practice sessions. For me the problem results from anticipating the release and not holding steady on the target after release. Basically poor form.........Keep you sessions shorter and try to pay attention to every shot like that whitetail is really in front of you.......I have also tried Stalker22's trick of setting my backup release heavier than I am used to and that also teaches you not to anticipate the shot.

Good Luck