Get a cleaning jag, drill and thread the middle of the jag and get you some of those screws with machine threads on one end and wood threads on the other...You can buy them from bp gun stores, but I always just buy them from Lowes Hardware...I think they are #10 so that's what you thread the jag with...Anyway, thejag helpskeep thepuller in the centerof the ball and it becomes quite easy to pull a ball...