I have aquired some new bullets and am having some difficulty. I am trying to load Hornady 3-d lead round nose 125gr in 9mm using aa#2. My manual list the OAL at 1.1". However if I seat the bullet to this OAL the Shoulder on the bullet engages the rifling and the round does not chamber all the way. In-order to get this bullet to chamber properly I have to seat the bullet down to 1.065". I realize I would have to lower my powder charge somewhat because of the decrease in OAL but would I have any other ill effects. Thanks for the help.