Had this problem with a zouave and I took the hammer off and laid it on a vise (jaws spread) and tapped it with a light ball pein hammer until it lined up with cap. I don't think the hammer will break as it has to be of a temper that it can take the stress of it's job. But then again I have a calibrated elbow, been a mechanic since 1967. Go light and slow, keep checking fit as you bend,good luck!