During a shooting match my buddies Glock 17 misfired several times. After observing several S & B rounds it seems as though the firing pin was not hitting the center and would hit at different place not in the center of the primer. The strike were very light. It was as if the bullet was not fulley chambered and the firing pin may have been riding on the primer as the bullet seated when going into battery. This is just my observation. Anyone seen a problem like this before?