if you have good form, barrel length makes no difference. gun fit is #1 followed closely by shooting form. barrel length mostly affects the balance of the gun (ie how it swings). if you can get the gun properly fit to you recoil will be minimized, and the gun will hit where you are looking. after that master your form, stance , swing, not swinging with your arms, but your body, and not lifting your head off the gun. if the first thing your instructor does isnt checking your gun fit, go find a new coach. gun fit, and form apply to all clay pigeon games the same.