I am using a Lee 9mm 124grain mold. I have been having great success with the bullet body, very nice crisp edges and no wrinkles. The main problem that I am having is a tiny bit of smearing when I pull off the sprue. It leaves the bottom of the bullets with a very thin lip hanging over the edge, almost like a bur that needs to be removed.
I tried wiping down the sprue and top of the mold with a very light coating of oil with mild success. I have also tried tightening down the bolts to make the sprue/mold interface tighter.
I would appreciate any tips you have on reducing this problem.