I started out shooting right, until I realized that I was left eye dominant. For the last 15 years or so I've been shooting lefty but I switch it up once in a while. I still only use right-handed rifles, which makes for interesting conversation at the range when I have to work the bolt. I've also taken a few spent 12g shells to the face.
Are you saying that she leans her head over so she's aiming with her left eye but shooting right handed?