Im using the cast bullets from lee that you just tumble lube, and I seated them down and crimped them on the last land so there was just a bit of lead above the case mouth. What happend was in the way to the barrel ramp the lead hit the edge of the lead ramp just befor the barrel ramp and dinged the lead enough to make going into chamber slow and hard. I had to push the slide forward with my thumbs inorder to close the action. Has anyone elce had this problem? Im trying to seat even deeper and I polished the feed ramps to a mirror, and will see what that dose. Any input from casters that have had overcome simlar problems?