Ive been shooting for about a yr now and just 2 weeks ago i noticed that i aim with my left eye open and right side closed when shooting a pistol and vice versa when shooting a rifle. Now im not sure which eye is dominant. I am right handed but im sure it doesnt mean im right eye dominant. I believe i am right eye dominant but when i notice this i was using my left eye to shoot pistol and seem to be more accurate. How can i be sure which is my dominant shooting eye?